What is the GREY red wire on the ballast for?
The gray/red wire is the return path for the second set of lamps. In other words, it is the neutral for the second set of lamps.
What is the blue wire on a ballast?
There are many types of ballasts, but the simplest one is usually found in two-tube light fixtures. The ballast has a hot and neutral wire at one end to receive power, and two blue wires a red one at the other end to supply power to the lights.
How do you wire a ballast and Ignitor?
To connect the ballast to the socket, get the white wire from the socket, locate the com2 or comX2 on both the short side of the transformer and the igniter and connect the three together using a wire nut. Locate the wire labeled lamp on the long side of the transformer and the X1 wire on the ignitor.
Can you wire a ballast wrong?
Ballast Wiring Tips. Replacement ballast should always match in voltage, wattage and brand. Wrong ballast types can cause fires or shorts. If you use a wrong sized ballast the LRC will not be tuned so you are likely to not start the lamp at all.
Can I use a 3 lamp ballast for 2 lamps?
On the 4 lamp parallel ballast diagram below, each individual wire is connected to a pair of individual wires on the lampholders. Replace 3 Lamp Instant Start Ballast with 4 Lamp Instant Start. A 3 lamp parallel ballast can be replaced with a 4 lamp parallel ballast. The new ballast can be used for 1 or 2 lights.
Can I use a 4 lamp ballast for 2 lamps?
Many replacement ballasts can be wired for several combinations of lamps, such that a 4-lamp ballast can be wired to a 3 or 2 lamp fixture. This will be shown right on the label and wiring diagram. There is no shortcut, you must look at the specific ballast and see whether the ballast is listed for that use.
How do I know if ballast is bad?
2. Look for warning signs that the ballast is failing.
- Buzzing. If you hear a strange sound coming from your bulbs or light fixture, like a buzzing or humming noise, that’s often a sign your ballast is going.
- Dimming or flickering.
- No lights at all.
- Changing colors.
- Swollen casing.
- Burn marks.
- Water damage.
- Leaking oil.
Can you change a ballast with the power on?
Although changing a ballast is safer with the power off, sometimes it is impractical, such as in a crowded store or office space, and you must replace the ballast without cutting the power. This can be done safely with some preparation and the right tools.
Is it hard to change a ballast?
The ballast takes in electricity and then regulates current to the bulbs. A typical ballast will generally last about 20 years, but cold environments and bad bulbs can decrease this lifespan significantly. You can get a new ballast at a hardware store or home center and install it in about 10 minutes.
How much do electricians charge to change a ballast?
A replacement ballast costs about $10-25 depending on capacity and brand. The bite is that an electrician trip charge (which includes 30 or 60 minutes work) is going to be $75-150 probably – for about 5 minutes work on each light fixture.
What is the function of a ballast?
In a fluorescent lighting system, the ballast regulates the current to the lamps and provides sufficient voltage to start the lamps. Without a ballast to limit its current, a fluorescent lamp connected directly to a high voltage power source would rapidly and uncontrollably increase its current draw.