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Questions tagged [ballast]

Use this tag for questions about ballasts used with fluorescent or other types of discharge lighting.

0 votes
0 answers
26 views

new fluorescent bulb + starter not working (but also power outlets) could be the resistance? [closed]

I just replaced the fluorescent bulb and the starter (but not yet the ballast, see question) before going ahead I noticed that also the electric outlets don't work I changed the fuses with no result, ...
Francesco Iapicca's user avatar
0 votes
0 answers
56 views

Is 163°F for my new fluorescent ballast too hot?

My neighbor who is a master electrician recently installed a new ballast for my fluorescent light fixture. On a whim, I just decided to inspect the work when I felt the light cover was a little warm. ...
Randy Scull's user avatar
0 votes
1 answer
57 views

Ballast Bypass arcing with power off

I’m in the middle of replacing a bunch of fluorescent Tubes with LED And bypassing the ballast. Everything was going great, but in one room with the power off (at the switch, not the breaker), after I’...
Jason M.'s user avatar
0 votes
1 answer
75 views

I couldnt find this at Home Depot. What should I use to replace it? [closed]

Home Depot doesn't carry these. I am not familiar with these and have never replaced one. Seems pretty easy to replace though. More concerned with brand and quality. I am not sure if I should buy the ...
amrog's user avatar
  • 347
0 votes
0 answers
22 views

One Fluorescent Fitting not working in parallel

I know it's not the bulb or the ballast (it's a starterless ballast), I've swapped bulbs to a different unit in same circuit, the bulb works in both of them but both don't work at the same time, I've ...
Greg Devenney's user avatar
0 votes
2 answers
115 views

Ballast wiring for 4 tube lights?

I have 347V Ballast wired. See attached the existing wiring and the one specified on the Ballast itself. Experienced & Experts, please comment: Would it still work? For my knowledge, Are the ...
Rob2023's user avatar
1 vote
1 answer
571 views

I’m having trouble with led tube lights replacing fluorescent tubes and still using ballasts

I replaced the old fluorescent tube bulbs with Phillips led tube lights a couple of years ago and have had problems ever since. The bulbs would turn off when they warmed up and turn back on when they ...
Randall Martin's user avatar
0 votes
2 answers
211 views

I'm wanting to do a ballast bypass on an old single bulb T12 light fixture, but the wiring is different from what I've encountered in how-to videos

I'm wanting to do a ballast bypass in this ancient fluorescent fixture with a magnetic ballast in my laundry closet. It has a single bulb and is easy to access, so I thought it would be a good one to ...
Nick's user avatar
  • 11
3 votes
2 answers
1k views

Do I need to install a junction box before installing a LED strip light fixture?

I would like to replace 15 year old Fluorescent 4 foot strip light fixture (electric ballast, T8, two light, 32W), it looked like this. This is in a closet ceiling. I was a bit surprised that when I ...
Tom Broome's user avatar
1 vote
2 answers
110 views

Is there an easy way to find out if a ballast is working?

I changed the bulb of a fluorescent light but it does not turn on. So, my first assumption is that the ballast has died. Is there any other way I can test the ballast? I am wondering perhaps the issue ...
Maesumi's user avatar
  • 683
1 vote
1 answer
72 views

Would anyone know how to fix only one of two T8 fluorescent tubes turning on?

There are two T8 fluorescent tubes and an electric T8 instant start ballast. All of the lamp holders are non-shunted. The T8 ballast has two blue wires and a red wire coming out of one side. I connect ...
Joe's user avatar
  • 11
2 votes
1 answer
417 views

How to tell if a fluorescent light gone bad or the switch

How can I tell if a light switch gone bad? It connects to two sets of fluorescent lights and neither one turns on. The lights have been on for two months and when turned off/on they do not come back ...
Maesumi's user avatar
  • 683
0 votes
0 answers
31 views

What behavior would I see if I connect a dimmable LED fixture to a fluorescent ballast?

I want to replace a fluorescent fixture with a dimmable LED fixture (standard LED, not fluorescent-replacement). I suspect the legacy ballast is hidden behind the drywall in the ceiling, but it's ...
sblom's user avatar
  • 151
0 votes
1 answer
695 views

dual-end powered ballast bypass with fixture that has a built in switch

I am attempting to do a ballast bypass for LED tube lights. The LED bulbs are dual-end powered with just one bulb per fixture. The pictures showed the wires I have at the ballast. The black wire on ...
onmyown's user avatar
0 votes
1 answer
336 views

Buzzing sounds from dimmable floor lamp

I have a floor lamp which is dimmable and has a box (ballast?) connected and controlling the brightness. It's making a loud buzzing sound when turned on. What can I do to fix it?
KubiK888's user avatar
  • 308

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