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TLDR;
This video provides a step-by-step guide on how to replace a light fixture ballast (stabilizer). It covers identifying the correct type of ballast, safely removing the old one, and installing the new one with clear instructions on wiring and mounting. The guide emphasizes safety precautions, such as turning off the power, and offers tips for dealing with common issues like stuck connectors.
- Identifying correct ballast type (wattage, number of lamps)
- Safe removal of old ballast
- Proper wiring and installation of new ballast
Introduction [0:00]
The video introduces the topic of replacing a ballast in a fluorescent light fixture, specifically in a room light. The presenter notes that ballast replacement is necessary when the light flickers or fails to turn on.
Identifying the Ballast Type [0:07]
The presenter explains how to identify the correct replacement ballast. Room lights typically use two ballasts, while some use three. To determine the type needed, check if the ballast connects to one or two lamps. If it connects to two lamps, you need a "two-lamp ballast." The wattage is also important; most room lights use 36-watt FPL lamps, while living room lights often use 55-watt FPL lamps, but it's crucial to check the wattage printed on the lamp itself (e.g., PL 32W/865/4P, where "32W" indicates the wattage). The "865" indicates the color, and "4P" means it's a 4-pin lamp.
Removing the Old Ballast [1:54]
The presenter demonstrates how to remove an old ballast, assuming a two-lamp, 36-watt ballast needs replacement. First, turn off the power and remove the lamps. Then, detach all the wiring connected to the ballast. The fixture has white and black wires; these need to be disconnected. If the connectors are stuck, cut the wires and use a tool to twist and pull them out. If the connectors are difficult to remove, you can purchase new connectors (P-connectors) when buying the ballast. After disconnecting the wires, remove the ballast from the fixture.
Installing the New Ballast [3:46]
The presenter guides through installing the new ballast. Attach the new ballast to the fixture using screws. If the existing screw holes don't align, create new ones. Ensure the ground wire is also secured. Connect the power wires (black and white) to the corresponding wires in the fixture. The new ballast has several wires: two for power and four for the lamps. The lamp wires are typically gray and white. Connect these wires to the lamp sockets, matching the colors (gray to gray, white to white). It doesn't matter which way the colors are connected.
Connecting the Lamp Sockets [6:07]
The presenter details how to connect the wires to the lamp sockets. The lamp sockets have four holes. Connect the gray and white wires from the ballast to these holes. You can connect them in any order (gray-gray, white-white or white-white, gray-gray). Secure the lamp sockets back into their original positions using screws.
Final Steps and Testing [7:59]
The presenter recommends using zip ties to manage the wires for a cleaner look. Reinstall the lamps and turn the power back on to test the new ballast. If the lights turn on, the replacement was successful. The presenter notes that replacing a ballast is straightforward once you understand the wiring.
Closing Remarks [9:18]
The presenter concludes by stating that while light fixtures may vary in design, the basic principle of connecting two wires and securing them with screws remains the same. With a little practice, anyone can replace a ballast.
