Questions tagged [fluorescent]

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ceiling surface mount fluorescent light question

I just picked up a great deal on some 4' fluorescent ceiling mount lights for my garage. Looking at the docs from the manufacturer, they state: MOUNTING Ceiling surface mount (HO and VHO units ...
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2answers
769 views

Fluorescent Without Fixture

I want to achive a very simple look with fluorescent lights. I want to hang a fluorescent tube from the ceiling with as little as possible. Was thinking maybe hanging them just in the cord to each end ...
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1answer
2k views

What is this knob on this fluorescent light fitting?

Recently I tried replacing a fluorescent bulb in my garage after it failed, upon fitting the new light it wouldn't turn on and there is this knob on the side (I have been told it may be something to ...
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2answers
93 views

Why does it take 20-30 seconds for a fluorescent tube to start?

One of the fluorescent lights in my apartment does nothing for long seconds or sometimes even minutes when turned on (then it surprises me when it suddenly comes on). It behaves as if there were some ...
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1answer
305 views

Can you wire a T12 fluorescent Strip light and a T8 fluorescent strip light together?

I have a 2FT Strip light and a 4FT strip light wired together in the kitchen. They are both T12 . I need to replace the 4FT one and I bought a cheap T12. However, I have to go back to the store ...
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1answer
2k views

How can I tell whether a fluorescent ballast is T8 or T12?

Is there a way to tell from a ballast's specifications (voltage, wattage, how many lamps it handles, etc.) whether it is a T8 or T12 ballast? Or do I need to look for the manufacturer's part number to ...
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2answers
1k views

Fluorescent light requires twist to start

I have a fluorescent light in my bathroom. It used to work fine, but then had issues with it not turning on. I replaced the tube, but it hasn't fixed the issue. I can get the light to come on if I ...
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3answers
883 views

How do I remove the T shaped metal device that is holding my fluorescent ballast cover on?

I'm trying to take the cover off of my fluorescent fixture, but I can't seem to figure out this fastener. I've tried rotating it to no effect.
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2answers
662 views

Fluorescent bulb shelf life

What is the expectation for unused fluorescent bulbs that are 1 year, 5 year and 10 years old? In general, do fluorescent bulbs appreciably degrade over the first 10 years? I am referring to tubes ...
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1answer
205 views

Why were both circular florescent tubes not working last night but are working this morning

We have 2 circular florescent ceiling light fixtures on a single switch. Last night neither bulb would come on. But this morning they are working fine. I had checked the circuit breaker, that was OK (...
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2answers
4k views

dimmable led bulbs won't work in dimmable fixture

Our living room has 4 dimmable lights controlled by 1 switch and slider. Many years ago, we replaced the incandescent lights with fluorescent bulbs (we didn't know that fluorescent bulbs don't dim out ...
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2answers
62 views

fluorescent lamp messing with voltage in the house

I got a cool lamp from a yard sale, its an arm mounted desk lamp that has a giant magnifying lens in the head and a circular fluorescent tube around it so its really nice for zooming in and ...
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2answers
2k views

How would I wire a motion sensor to a fluorescent light?

How would I wire this motion sensor to the fluorescent light? I’ve heard that not all motion sensors are created equal and it may shorten the lifespan of the bulbs or possibly the transformer but if ...
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2answers
2k views

Fluorescent light wont work after replacing starter and bulb

I have 2 single bulb fluorescent lights that do not turn on after replacing the bulb and starter. What else could be preventing the light from turning on? ANy advice on what should I check? Thanks
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1answer
2k views

Why don't my fluorescent lights work after a nearby lightning strike?

I was working in the basement during a thunderstorm, with two banks of fluorescent tube lights (like office lights) in two rooms on. Thunder pealed, power went out. Every so often there would be a ...
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2answers
347 views

Installing single-ended LED in a pre-existing T-8 fixture with only one connection per side

I have a set of new LED bulbs which want hot & neutral connection at just one end of each bulb. The fixture in question however is wired differently than I expected. It has just one wire per end....
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2answers
921 views

Fluorescent ceiling fan light single flash when switch turned on

I have a Hampton Bay CVT-54 ceiling fan and I'm seeing a very strange issue with the fluorescent ring light. When I flip light switch the light will flash momentarily then go dark. Flipping the light ...
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1answer
46 views

Another fluorescent light question

The fixtures are older T-12, 8', 2 lamp, single point ends. There are many at this location but this one is not working for me. First it wouldn't come on at all. I replaced the ballast with a new ...
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1answer
938 views

Replacing fluorescent fixture with a normal tungsten lamp - wiring trouble!

I am replacing 2 fluorescent fixtures with 2 simple two-wire lamps. (The two fixtures are on one circuit - when I removed the first fluo fixture, the second one no longer lit up.) I am having ...
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0answers
51 views

Whassup with this ceiling fixture?

40W Circline fluorescent would periodically light for less than a second, but stay on when tried an hour or so later. Replaced bulb; same problem. Replaced ballast; now it lights for only about a ...
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0answers
99 views

How to remove fluorescent bulb from a stuck rotary lock socket?

I'm trying to change a fluorescent bulb but it gets stuck when I try to turn it 90 degrees to remove it. The socket appears to be of rotary lock type, the same as the one in this question: How to ...
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1answer
54 views

Fluorescent Light issue

I have a 4 bulb light fixture which suddenly just went out. I checked and there was power to it. I changed all the bulbs in case one was bad and still nothing. So I purchased a new ballast and ...
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0answers
39 views

Fluorescent fitting problem

I live in France. I have just received a replacement twin fluorescent fitting to replace a unit that failed after 3 months. I have tested the new fitting on a bench, connecting live neutral and earth ...
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1answer
3k views

How to turn the contact rings in an empty fluorescent bulb socket from closed to open?

A fluorescent bulb was improperly removed from its sockets. I am unable to turn the contact rings from the closed to the open position. I would be thankful for any advice.
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1answer
103 views

fluorescent Tube F15 T8 Not working

I have a desk lamp that takes 2 fluorescent tubes F15 T8. The current tubes work but I wanted new ones. I just purchased new tubes and they don't work at all. Any idea what is the difference between ...
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2answers
158 views

Heater fan causes fluorescent light to dim/flicker

While we were cleaning out a friend's garage I turned on a heater fan. I didn't take a good look at it but it has a digital display, thermostat, and I'm pretty sure it's a wire element type. It ...

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