Go to your breaker box … Electricians usually refer to a light bulb as a lamp. We understand sometimes things go wrong and we aim to make returns as simple as possible. Step 4 - Test the Ballast. Cut the Old Ballast Wiring. GERS … Locate The Ballast On The fluorescent Light Fixture. U-shaped and straight fluorescent bulbs install into fluorescent sockets that connect to the ballast. Does my fluorescent tube need a starter as well as a ballast? Lights which are operated with a high frequency ballast do not flicker, but instead light up instantly due to the frequency being much quicker. Simply replacing the fluorescent tube will normally get the light working again; however, if the new tube doesn't light up when installed, it may be that the ballast is faulty. When a rapid start ballast (wired in series) operates multiple lamps and one lamp fails, the circuit is opened and the other lamps will not light. Install the new ballast and secure it with the old mounting screws. If your light comes on immediately but takes a few seconds to get fully bright, it has a rapid-start ballast. A metal ballast mounted to the metal light fixture will automatically ground the ballast. I suspect the wiring is not as simple as described. Grounding is usually automatic if the light fixture is grounded properly. Electrical tape. Ballast can be quite expensive, so you want to be certain that it really is the source of the electrical problem in your florescent light … Three-prong grounding plug. Ballasts have certain colors for, Older magnetic fluorescent ballasts are usually rapid start and wired in series. 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. "Ballast bypass" tube lights require the ballast to be removed. Step 1 Turn off the power to the fluorescent light that has the bad ballast. A wiring diagram is a streamlined standard pictorial representation of an electric circuit. Fluorescent lighting is an effective way to light a large area. It reveals the components of the circuit as streamlined forms, and the power and also signal links in between the gadgets. How to wire a replacement ballast with different wiring? 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. Older magnetic fluorescent ballasts are usually rapid start and wired in series. Insert the LED bulb, and you got your economical LED bulbs. The process that occurs inside a fluorescent light involves molecules of mercury gas being heated by electricity and made more conductive. If the ballast is not the problem, you may need to replace your fluorescent tube. I believe that ballast is itself a replacement, which would explain the discrepancy in the output wire colors. 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. A neutral wire (for the sake of simplicity) is a white wire which completes the circuit back to the electrical panel. Cut the new wires to length and then connecting them accordingly (see diagrams) with wire nuts. The amount of illumination in the fluorescent bulb is controlled by a ballast that is connected to the fixture. You need to cut these wires close to the ballast; these are input wires because they send power to the fixture. Most T8 tubes will have a hidden ballast, covered with a casing and resting behind the tube light. If an old T12 lamp magnetic ballast is replaced with a newer T8 lamp and electronic ballast, the colors will probably not match. Use the wire cutters to cut the wires connected to the sockets. This is called the pre-heat method. I am looking for some advice about fluorescent ballasts replacements. Switch start is the control gear that has been used by the industry for years. 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". The two yellow wires on a 4 lamp ballast are connected together inside the ballast. Step 7 If you sometimes hear your light buzz or see it flicker, it’s this changing flow of current that’s causing it. These instructions are for guidance purposes only – ensure you reference the manufacturers wiring diagrams. Feed the ends of the wire through the cable clamps and tighten the screws until the wire is secure. In any case, once you identify the hot wire, the neutral will be on the same side. Less advanced in their design than electronic models, some magnetic ballasts can’t function without the aid of a starter. If a ballast has a ground terminal on it, a ground wire should be connected to it. Changing the wiring on a fluorescent light fixture from rapid start to instant start, involves changing the wiring from series to parallel. Older fixtures have a nut in the center of the glass cover. This quickly heats the mercury gas inside the light. 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. Snip the old fluorescent ballast wiring several inches from the end of the fluorescent ballast with side-cutting pliers or wire snips. We have a quick video tutorial below. The common wire(s) connect to all of the lampholders on the other side of the tubes. 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. Lamp compatibility table (type of lamps that can be used with this ballast) Ballast wiring diagram (shows how the ballast is wired to the lamps) Fluorescent Tube Diameters. The label on the ballast shows two important labels. In most cases when we buy a fluorescent light it comes in a complete set with all wire connected. opposite side of ballast as the LED Tube lamp only requires power at one end. How to Direct-Wire a Fixture for Single-Ended LED Lamps. 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