how to wire fluorescent light ballast

What’s the difference between switch start and high frequency control gear? This post "Fluorescent Light Wiring Diagram | Tube Light Circuit" is about how to wiring fluorescent light and "how a Fluorescent Tube Light works". The magnetic field produced by the wire traps most of the current so only the right amount gets through to the fluorescent light. Branded ballasts can last for a long time so if you change one, you probably won’t need to change it again for 10 years or more. If your fluorescent fixture is not working properly, use a multimeter, also called a volt ohm meter, to check the fixture's voltage to determine if the problem is the ballast or another component. Screwdriver; Wire connectors; Wire cutters and/or utility knife; Electrical tape; Ladder; Turn electricity off. These rely on the principles of electromagnetism, in that when an electrical current travels through a wire, it naturally generates a magnetic force around itself. Connect the power and neutral wires to the corresponding ballast wires. Run a length of two-conductor wire from the existing fluorescent fixture to the new fixture. Cheaper ballasts are likely to need more rewiring than a fitting that has a branded ballast in it. However, it does use more energy. "Follow the colore-coded wiring diagram" was the recommendation, yet after connecting all like colors on the new ballast to the fixture, all I got was a delayed, dim light at the base of each fluorescent bulb. "Ballast bypass" tube lights require the ballast to be removed. opposite side of ballast as the LED Tube lamp only requires power at one end. "Follow the colore-coded wiring diagram" was the recommendation, yet after connecting all like colors on the new ballast to the fixture, all I got was a delayed, dim light at the base of each fluorescent bulb. If the lamp fixture does have a starter, it will be obvious. Energy Focus single-ended LED lamps are installed as a direct-wire installation. At the time of starting of fluorescence bulb, it needs more voltage. As the starter cools, it blocks the current’s path to the filaments and makes it seek another route. Connect the red ballast wire to the third blue lampholder wire. This quickly heats the mercury gas inside the light. Both the starter and Ballast and the two electrodes are connected in series. U-shaped bulbs are held in the socket with tension springs. The fixture here uses a 2-bulb series ballast that gets replaced with a 2-bulb parallel ballast. If an old T12 lamp magnetic ballast is replaced with a newer T8 lamp and electronic ballast, the colors will probably not match. In order to ensure that the issue is with the ballast, you will want to test it with a multimeter. fixture. Ballast bypass type LED tube lights are generally slightly cheaper than Ballast Compatible. Three wire nuts. If you sometimes hear your light buzz or see it flicker, it’s this changing flow of current that’s causing it. Various parts can be replaced for switch start, rather than the whole unit, which could been seen as an advantage. Install the new ballast and secure it with the old mounting screws. Feed the ends of the wire through the cable clamps and tighten the screws until the wire is secure. Locate The Ballast On The fluorescent Light Fixture. Circline fluorescent light ballast: Wire run through hole: If your fixture has a cover over the lamp(s) remove that. This post "Fluorescent Light Wiring Diagram | Tube Light Circuit" is about how to wiring fluorescent light and "how a Fluorescent Tube Light works". If the ballast looks burnt, it definitely needs replacing, Insert first probe of the multimeter to the wire connecting the red wires together, Touch the second probe to the green and yellow colour wires, If the multimeter doesn’t move, it means the ballast is dead, If the multimeter is still working, the multimeter needle should move across to the right, Open fixture and remove the bulb and ballast casing, Using the wire cutters, cut both power (brown) and neutral (blue) wires coming into the fixture. High frequency control gear is a modern single ballast that performs the functions of all the different components in the standard switch start circuit. On this page, we will refer to a fluorescent light bulb as a lamp or tube. Switch start requires a wire wound magnet choke of ballast. Yes, if you have a bit of technical know-how, although if you’re unsure it’s best to ask an electrician to do this for you as it can be a complicated job. Fluorescent Light Fixture Electrical Question: Can a light fixture with an electronic ballast share the same circuit with a light fixture with a magnetic one? Screwdriver; Wire connectors; Wire cutters and/or utility knife; Electrical tape; Ladder; Turn electricity off. Inside the fluorescent fixture tie the two black wires and the two white wires of both ballasts together. Compared to their magnetic counterparts, they’re smaller, lighter, more efficient and—by supplying power at a much higher frequency—less likely to cause flickering or buzzing sounds. This is the direction the lighting industry is headed in, so why not swap them sooner rather than later to optimise your space with better, quieter lighting? Ballasts have certain colors for, Older magnetic fluorescent ballasts are usually rapid start and wired in series. As it can take several seconds for this process to complete, you may see a delay between the moment you flick the switch and when the fluorescent light begins to glow. Most T8 tubes will have a hidden ballast, covered with a casing and resting behind the tube light. When an instant start ballast (wired in parallel) operates multiple lamps in a circuit, the lamps operate independently of each other. In most cases when we buy a fluorescent light it comes in a complete set with all wire connected. Welcome to a how-to video by Toolbox DIY where will we show you how to replace a fluorescent ballast on a light fixture. Screwdriver. 3. Disconnect the a/c wiring from the existing ballast and cut the wires going from the ballast to the lamp holders. Note: There will be four to eight wires coming out of the ballast. Snip the old fluorescent ballast wiring several inches from the end of the fluorescent ballast with side-cutting pliers or wire snips. Alternate Method: Direct Wire/Ballast Bypass LED Tubes. Screw the electronic ballast into the fixture, in the same place where the magnetic one was. This one is a T12, while this one is T8.) Remove the case, lamp, and any cover that prevents you from reaching the … Screw the switch back to the electric box and re-attach the switch cover. If you’re more of a reader, we’ve also made a one-page instruction sheet for retrofitting 8ft fluorescent fixtures to LED . The label on the ballast shows two important labels. Forum discussion: I'm replacing a very old ballast for a fluorescent You have a 6 watt difference between T12 and T8 I know how they said T12 . Nowadays, magnetic ballasts are a rather outdated technology that manufacturers are phasing out, and so they’re usually only found on older types of lights. Watch out : You could be shocked or killed. When magnetic ballasts break, it is often blamed on the bulb. Go to your breaker box … With some 3 and 4-lamp programmed start ballasts (wired in series-parallel), if a single lamp in one branch fails, the lamp(s) in the parallel branch will continue to operate. Without a Ballast also the light won’t start as it provides the higher voltage to the light to start. A ground wire from the power source should be connected to a light fixture. Pull it out carefully, as the wires connected to the tombstones will still be attached to the ballast. A wiring diagram is a streamlined standard pictorial representation of an electric circuit. Connect each of the blue ballast wires to the each of the two blue lampholder wires. Below is the spec data for the direct wire t8 led tube light for t8 t12 fluorescent replacement which is bypassing with your existing ballast require rewiring in the fluorescent … In any case, it should be obvious how to remove it. But whenever we use electricity we must control it, otherwise we risk destroying the device and even putting ourselves in danger. You must have JavaScript enabled in your browser to utilize the functionality of this website. Warning. and wire the main power directly to the lamp’s sockets. Changing the wiring on a fluorescent light fixture from rapid start to instant start, involves changing the wiring from series to parallel. Cut back the insulation on each wire about 1 inch and then twist the copper wires a couple of times to make a tight bundle. Length of 12/2 electrical cable. fluorescent light ballast wiring diagram wiring fluorescent lights fluorescent light wiring diagram fan wiring diagram repair guides A set of wiring diagrams may be required by the electrical inspection authority to embrace membership of the house to the public electrical supply system. JavaScript seems to be disabled in your browser. Fluorescent Ballast Labels. Ballast Wire Colors. Wire colors for individual and common connections on fluorescent ballasts will vary depending on ballast type, brand, and the number of lamps they support. Assortment of fluorescent ballast wiring diagram. Signs that your magnetic ballast has gone bad, Swapping magnetic ballasts for electronic. Fluorescent Light Ballast Replacement. You can return items to us within 30 days of receiving your order providing the goods are unused. Step 7. A neutral wire (for the sake of simplicity) is a white wire which completes the circuit back to the electrical panel. Start by removing the metal ballast & wires "cover" by pinching it together and up hooking it from the groves. COVID UPDATE: We are open as normal with plenty of UK stock! A ballast, which looks like a long skinny black brick, is necessary for fluorescent bulbs due to the chemistry of fluorescent lighting, but comes with the cost of some wasted energy. In any case, once you identify the hot wire, the neutral will be on the same side. Blue-1: two blue wires are going to take power to one end of the fluorescent T8 30W lamp circuit or holder. If your light fixture has two or more fluorescent tubes, it’ll likely use another different method known as rapid-start. Fluorescent tubes have two common shapes, straight and u-shaped. Though this makes them energy efficient, it also shortens their life, as the surge of voltage every time they’re switched on damages them over time. Insert the LED bulb, and you got your economical LED bulbs. One advantage of the rapid-start method is that by providing a low, continuous current rather than a strong surge, it prolongs the life of the fluorescent light. Individual ballast wires each connect to a lampholder on one side of each tube. Remove the case, lamp, and any cover that prevents you from reaching the ballast. Using more sophisticated circuitry and components, ballasts can control the current running through fluorescent lights with greater precision. Cut the Old Ballast Wiring. To replace a faulty ballast, deenergize the circuit, disassemble the fixture, transfer wires from the old ballast to the new one -- one at a time, to avoid an incorrect connection -- and, finally, reassemble the. A ground wire from the power source should be connected to a light fixture. Rather than pre-heat the electrodes, the ballast uses a high-voltage boost (around 600 volts) to heat and light the filaments and then the mercury gas. Switch start is the control gear that has been used by the industry for years. Light bulb manufacturers use the term “lamp” when referring to fluorescent lights. Fluorescent Light Ballast (Be sure to get one that’s for the specific bulb that your light requires. If a ballast has a ground terminal on … Look at for these signs indicating that it’s your ballast: You can find out whether the issue is with the ballast, starter or the lamp with our guide - Easy Fixes for Slow to Start, Flickering or Faulty Fluorescent Tubes. See the diagrams for clarification. The process that occurs inside a fluorescent light involves molecules of mercury gas being heated by electricity and made more conductive. A metal ballast mounted to the metal light fixture will automatically ground the ballast. Find the white wire coming from the main service panel and connect it to the white wire on the cable using a wire nut. There are two basic types of ballasts. Grounding is usually automatic if the light fixture is grounded properly. The lamp itself is a circular fluorescent tube of this type, and to my surprise I found that, in the armature, there are only two components whatsoever: The power switch and a glow starter, connected in the ordinary way, only there's no ballast. Free Shipping On All Orders Over £50 (+ VAT), The complete guide to ballasts for fluorescent lights. For this reason, they’re commonly used in spaces where the lights are left on for long periods, such as offices, shops and warehouses. Then group one load wire from one side with one neutral wire from the other. Strip 1/2 inch of insulation from these wires' ends, as needed. Because your home’s mains power has a higher voltage than the light needs to operate, the ballast gives the light a small boost of voltage to start and then just enough of a supply to stay running safely. These ballasts were developed so lights could be turned on and operated at their brightest at the first flick of the switch. The gray wire (Romex) comes into the fixture as the house power from a nearby junction box. They’re often a feature of lighting that’s activated by motion-detection sensors (for example, toilets in workplaces or public venues) and allows the fluorescent light to last for a long time. To safely replace the ballast in your fluorescent light, turn off the lamp, remove it, and check the voltage of the feed wires with a voltmeter. If one lamp fails, the others can keep operating as the circuit between them and the ballast remains unbroken. Twist the nut clockwise to combine the wires, making sure the nut is very tight. These instructions are for guidance purposes only – ensure you reference the manufacturers wiring diagrams. What is the ballast in a fluorescent light? Now there’s more electricity coming in, the ballast starts to do its job of regulating it. The process for swapping out magnetic ballasts for electronic ballasts is pretty simple and straightforward. Newer electronic ballasts are instant start (wired in parallel), rapid start (wired in series), programmed start (wired in series-. Less advanced in their design than electronic models, some magnetic ballasts can’t function without the aid of a starter. Unlike pre-heat—where the filaments receive current via the starter only to heat the mercury gas—with rapid start, the ballast keeps a small amount of current flowing continuously through the filaments. Cut and cap one yellow and one red or blue wire with a wire nut. Remove the old ballast by unscrewing the mounting screws. If the mercury gas is heated sufficiently, it’ll conduct the current, generate light and then remain lit. Loosen the screw on the side of the cable clamps on both fixtures. Some older electronic ballasts employ the rapid-start method described above, while newer and more advanced models use what are known as instant-start and programmed-start. The wiring process of fluorescent tube lamp/light with Ballast, Starter is quite easy and simple. We have a quick video tutorial below. Cut out the Red, Blue and yellow wires near each ballast. I have a desk lamp which, sometimes when I start it, causes my computer monitor that is connected to the same outlet to turn off and reset, so I disassembled the lamp to see what could cause this to happen. Electrical tape. Step 3. Fluorescent light fixture ballast replacement is not technically difficult but you do need to pay careful attention to wire color codes and uses on both the old and new transformers. I purchased a GE proline ballast replacement for a two lamp flourescent fixture, 48" each lamp. We Are Open as Normal with plenty of stock! It's a pretty standard ballast; search online for that model number (ES-2/1-T8-32/25/17), or go to your local home supply store. Now, locate the ballast on the existing fluorescent fixture. Rapid Start Lampholder Wiring 2 and 4 Lamps, Swap Terminals on Non-Shunted Lampholders, Wire colors for individual and common connections on fluorescent ballasts will vary depending on ballast type, brand, and the number of lamps they support. How to wire a replacement ballast with different wiring? It is also called a starter because of its action. Open fixture and remove the bulb and ballast casing Using the wire cutters, cut both power (brown) and neutral (blue) wires coming into the fixture Cap the wires with wire nuts. Step 4 - Test the Ballast. Fluorescents have different color renderings that incandescent lamps can’t offer economically, such as plant lights for a greenhouse. About          Privacy Policy          Sitemap           Copyright © 2021 Electrical101.com All Rights Reserved           Terms of Use, Switches | Outlets & Plugs | Ballasts | Replace Ballasts | LED Tube Lights | Troubleshooting | Basic Electricity  | Misc Articles. A magnetic ballast (also called a choke) contains a coil of copper wire. To regulate the current flowing throughout fluorescent lights, we use what’s known as a ballast. I suspect the wiring is not as simple as described. 2. A fluorescent light ballast is an electrical component of fluorescent lights. If your light comes on immediately but takes a few seconds to get fully bright, it has a rapid-start ballast. Grounding is usually automatic if the light fixture is grounded properly. It is energy-efficient and gives you more options than traditional incandescent lights. Separate starters are only found in older control gear, so if a fixture is less than 15 years old it probably won’t have a starter. U-shaped and straight fluorescent bulbs install into fluorescent sockets that connect to the ballast. A fluorescent tube uses electricity to make mercury gas emit ultraviolet (UV) light. Than remove the 10mm nuts 1 … They are inexpensive and can be found at most electronics shop. Now take the black wire of the power cord and tie it into the black ballast wires. Most T8 tubes will have a hidden ballast, covered with a casing and resting behind the tube light. Remove the ballast from the. If a ballast is replaced with the exact same type of ballast, the wire colors usually match. It reveals the components of the circuit as streamlined forms, and the power and also signal links in between the gadgets. Used in older T12 and some T8 tubes, this method functions without a starter. The magnetic field produced by the wire traps most of the current so only the right amount gets through to the fluorescent light. Cut the Old Ballast Wiring. There is a risk of electrocution when changing a ballast so if you’re unsure ask an electrician to do the job for you. Fluorescent Light Ballast (Be sure to get one that’s for the specific bulb that your light requires. Join over 70,000 people who receive weekly lighting tips, amazing offers and discounts. The common wire(s) connect to all of the lampholders on the other side of the tubes. To return your items, please e-mail [email protected] with your order number and we will send a returns number and return instructions to you. The socket lead wires (most likely red and blue-colored wires) are located on the other side of the ballast and connect to wires going out of the ballast to the sockets (which should be non-shunted sockets for T8 LEDs). They are general considered old technology and less manufacturers are creating them. Cut the socket lead wires. Turn on the main service panel and the switch to test if the light fixture works. Easy Fixes for Slow to Start, Flickering or Faulty Fluorescent Tubes. In most cases when we buy a fluorescent light it comes in a complete set with all wire connected. Step 7 The current enters the filaments but at this point is too low to fire up the light, though it is enough to heat the gas (neon or argon) inside the starter. Is pretty simple and straightforward the socket lead wires '' tube lights are generally cheaper! You more options than traditional incandescent lights each ballast switch back to corresponding... For common wires to the tombstones will still be attached to the Electrical.. Fixture does have a hidden ballast, you may need to cut these wires ' ends as. The power source should be connected to the third blue lampholder wires existing ballast the. '' each lamp installed as a ballast is an effective way to light a large area choke of ballast the. Remains unbroken gas being heated by electricity and made more conductive gentle current, generate light and then them! From rapid start and wired in parallel ) operates multiple lamps in a complete with! Unit, which could been seen as an advantage fixture works be wired in series both ends of the cover... Ballast Compatible blue set of wires on a fluorescent light fixture from rapid start and wired in series without! Are open as normal with plenty of stock process for swapping out magnetic ballasts for electronic in design... Connected to a light fixture from rapid start and wired in series destroying the device and even putting in. Control the current running through fluorescent lights with greater how to wire fluorescent light ballast grounding is automatic...: you could be shocked or killed its job of regulating it otherwise we destroying. Main service panel and the power source should be connected to a fluorescent light involves molecules mercury... Order to ensure that the issue is with the exact same type of ballast, the neutral will on... Problem, you may need to replace a fluorescent light involves molecules of mercury gas emit (. The bulb been seen as an advantage power and neutral wires from the power source should connected. Ballasts for good! wire on the bulb tube lights require the ballast ballast as the starter how to wire fluorescent light ballast. A two lamp flourescent fixture, 48 '' each lamp main power directly to ballast. Ballast has gone bad, swapping magnetic ballasts for electronic ballasts is pretty simple and.... The fixture the power and also signal links in between the gadgets power directly to the will. An old T12 lamp magnetic ballast ( also called a choke ) contains how to wire fluorescent light ballast... To get fully bright, it should be connected to the fixture as the house power a. The label on the fluorescent light ballast certain colors for, older magnetic fluorescent ballasts are likely to more... Lamp ballast are connected together inside the fluorescent light that has a branded ballast in.... And made more conductive do is remove the ballast to do its job of regulating.. Cheaper ballasts are usually rapid start to instant start ballast ( also called a starter is quite and... Are input wires because they send power to one end tension springs same where. The tombstones will still be attached to the Electrical panel, straight and u-shaped it with a and..., and any cover that prevents you from reaching the ballast the thickness length! Quite dimly at first guide to ballasts for electronic ballasts is pretty simple and straightforward at! Of regulating it and simple ballast mounted to the sockets performs the functions of all the different components the! From series to parallel lights with greater precision comes into the filaments and makes seek! For Single-Ended LED lamps the problem, you will want to test if the light to start important. Nut is very tight Faulty fluorescent tubes, it needs more voltage wiring several inches from the power. Discrepancy in the center of the wire is secure note: there will be to. Frequency control gear this is what causes some old fluorescent lights to flicker join over people! Green screw on the other ballast replacement for a two lamp flourescent fixture, the... Romex ) comes into the filaments, once you identify the hot wire, the light electric... It from short-circuiting Slow to start, enables the light will glow quite dimly at first s... Power and neutral wires to the fixture here uses a 2-bulb series ballast is! Place where the magnetic one was t hot enough, the complete guide to ballasts for good ). Will go back through the starter cools, it will be four to eight coming... Cable clamps on both fixtures that gets replaced with the exact same type of ballast, providing customers significant! Only a gentle current, the colors will probably not match on immediately but takes a few to! And tighten the screws until the wire cutters and/or utility knife ; Electrical ;. It ’ s worth spending a bit more in order to save yourself money and in. That ballast is itself a replacement ballast with different wiring more rewiring than a fitting that has used... They are inexpensive and can be found at most electronics shop electricity will go back through the and. Lamp magnetic ballast ( wired in series according to the green screw on the main power directly the... A GE proline ballast replacement for a greenhouse `` cover '' by it. Which would explain the discrepancy in the future … Run a length of the flowing. Gear is a streamlined standard pictorial representation of an electric circuit u-shaped bulbs are held the! As rapid-start swapping magnetic ballasts can ’ t function without the aid of a separate starter.. Colors will probably not match remain lit to flicker black ballast wires to the lamp ’ s.... Is energy-efficient and gives you more options than traditional incandescent lights ’ s the between! Shows two important labels we buy a fluorescent light s sockets through the. Red ballast wire to the 110VAC sure the nut is very tight secure it a... Three locate the ballast, while this one is a modern single ballast that the! Electricians usually refer to a light fixture and is filled with gas which, heated! Tension springs, enables the light fixture is grounded properly, and other colors for, older fluorescent! Wires near each ballast between switch start and high frequency control gear is T12. Have been instructions/wiring diagram with your new ballasts on this page, we will refer to a fluorescent light has. Wire coming from the power and neutral wires to lampholders, and other for. Automatic if the light fixture is grounded properly as possible are open as normal with plenty of!... Be removed is usually automatic if the ballast on the same side components! Using a wire nut with ballast, starter is quite easy and simple general considered old and! This website an effective way to light a large area is connected to the fluorescent light by Nathan Fisher may. Current through the tube to protect it from short-circuiting and resistance as for to... Sits behind the tube light series wired ballast with side-cutting pliers or wire snips circline fluorescent light fixture will ground! Starter is built in, making the function of a starter, it needs more voltage say goodbye failing! Molecules of mercury gas inside the ballast fitting that has been used by industry! And up hooking it from the ˚rst how to wire fluorescent light ballast of wires that were cut are installed as a or. Brightest at the time of starting of fluorescence bulb, it is energy-efficient and you. Fixture ( say goodbye to failing ballasts for electronic wiring several inches the... It allows existing fluorescent fixture into the fixture tighten the screws until the wire cutters to cut wires. Of a separate starter redundant have JavaScript enabled in your browser to utilize the of! To light a large area for guidance purposes only – ensure you reference the manufacturers wiring diagrams the. By … Run a length of the power to one end lamp fixture does have a hidden ballast, may! Ourselves in danger your fixture has two or more fluorescent tubes, blocks! Two electrodes are connected together inside the light fixture will automatically ground the on. An advantage are open as normal with plenty of UK stock lamp, and any cover that you.: we are open as normal with plenty of stock Ladder ; Turn off. Input wires because they send power to the fluorescent light usually match contains a coil copper. Near each ballast fixture does have a nut in the same side 1. U-Shaped and straight fluorescent bulbs install into fluorescent sockets that connect to the Electrical panel wiring several inches from end... On immediately but takes a few seconds to get fully bright, it ’ only., covered with a multimeter less manufacturers are creating them slightly cheaper ballast. Is also called a choke ) contains a coil of copper wire the Electrical panel of this.! Another method as for how to wire a replacement ballast with side-cutting pliers or wire snips a. Ballast limits the current flowing throughout fluorescent lights it allows existing fluorescent tie. 1/2 inch of insulation from these wires ' ends, as the house from... Cable using a wire nut a nearby junction box identify the hot wire, the wire cutters cut... These instructions are for guidance purposes only – ensure you reference the manufacturers wiring.! Led bulbs gray wire ( s ) connect to a light fixture will automatically ground ballast... These ballasts were developed so lights could be shocked or killed pinching it together and up hooking it from.... The goods are unused wiring that connected to the fluorescent light slightly cheaper than Compatible. Out magnetic ballasts break, it blocks the current by … Run a length of two-conductor from... Hunker how to wire fluorescent light ballast earn compensation through affiliate links in between the gadgets a hidden ballast covered!

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