Questions tagged [fluorescent]
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0
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2answers
36 views
Can a T8 bulb work with a T5 ballast?
What (if any problems) will happen if a T8 bulbs are used with T5 ballasts?
2
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1answer
20 views
How to remove cables from the Philips ballast for fluorescent lamps?
I have a few HF-Performer III TL5 ballasts to to which I connected cables in past. Now I can't take them out
http://www.lighting.philips.com/main/prof/lighting-electronics/fluorescent/fluorescent-...
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2answers
48 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 ...
0
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1answer
27 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 ...
0
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1answer
16 views
Systematic process to find replacement fluorescent T5 lamp holder
The goal is to replace a plastic T5 tombstones has melted. The side 'wings' fold-in so it can be 'dropped-into' the fixture.
There are approximately 100+ tombstones and one has melted. Is ...
0
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2answers
78 views
Why do fluorescent lighting tombstones melt?
I am fixing the lighting in an older building and one of the plastic tombstones has melted.
There are approximately 100+ tombstones and one has melted. A search found a forum discussion that ...
2
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1answer
53 views
what is the likely cause of a single fluorescent tube not working in a light fixture with a ballast that supports two tubes?
So I've got a warehouse with many fluorescent tube fixtures. We are slowly transitioning piecemeal to LED as we run out of replacement ballasts and bulbs.
I've got a fairly simple troubleshooting ...
4
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5answers
239 views
Measuring frequency of a fluorescent light source?
I noticed that my eyes feel tired with certain fluorescent lights in my office. I read that low frequency fluorescent lights can make eyes tired. Is there a tool I can purchase to measure the ...
1
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3answers
89 views
I replaced my fluorescent light ballast but the bulbs turn off immediately
I changed the ballast on the florescent lights in the laundry room yesterday. Now this morning when I throw the switch they turn on then off immediately.
Is this a loose wire connection? Should I go ...
0
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1answer
205 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 ...
1
vote
2answers
103 views
Removing a surface-mounted shop light
In my garage, I have some surface-mounted (or flush-mounted) fluorescent shop lights. I would like to replace them with LED shop lights, instead.
They are just plug-in lights, so the electrical part ...
1
vote
0answers
33 views
Can an F40T8 4ft ballast power an F36T8 2ft bulb?
I have some F36T8 2ft bulbs that I need to power, unfortunately the closest ballast I can locally find are rated for 4ft F40T8 bulbs. Can I still use them, or will it be a hazard?
0
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2answers
583 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 ...
0
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2answers
301 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 ...
0
votes
1answer
57 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 ...
1
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3answers
1k views
Is a ballast required, or merely acceptable, for this Philips InstantFit LED tube?
Rather than replace a dead ballast in a fluorescent fixture, I've decided to simply bypass and move to LEDs. However, I think I may have grabbed the wrong kind of replacement tubes the other day in ...
0
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2answers
818 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
19
votes
7answers
4k views
How to deal with broken compact fluorescent (and its mercury) without breaking the bank?
We're now out of the compact fluorescent era, fortunately, but we wound up with 3 or 4 broken CF bulbs from somebody not being careful with a box of them in the garage ...
We're moving and I want to ...
0
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0answers
34 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 ...
0
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3answers
309 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.
1
vote
3answers
53 views
How to get a TL light working
I have a set of fluorescent tubes (2) in my kitchen and they both do not work (noticed while I came home).
Normally one of the starters is broken and I replace it but this time both lights to not ...
0
votes
1answer
943 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 ...
1
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2answers
813 views
Replace A T5 Fluorescent to A T8 LED
I currently have a T5 Fluorescent Fixture which one socket broke. I got a great deal on LED Bulbs which are a direct replacement to T8 Fluorescent bulbs. Would I be able to reoutfit the fixture with ...
1
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1answer
392 views
Direct Wire LED: T12 Replacement
CONTEXT
An older office's 4-foot T12's are to be replaced with direct wire LEDs because the ballast cost + labor can be avoided. The instructions indicate that the hot is wired to one end and the ...
1
vote
4answers
276 views
How can I determine the color / temperature of my current fluorescent bulbs?
I intend to replace an old and large population of T12 flourescent lights with T8 LEDs: direct wiring. The ballasts are $15 a piece (2 required per fixture) and it would seem that a 4 X $10 direct ...
0
votes
2answers
180 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....
0
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2answers
736 views
Are LED retrofit bulbs more resilient to ballast problems?
My office overhead lighting currently uses fluorescent bulbs. For ~5 minutes after turning them on, lights will flicker. I diagnose this as a weak ballast.
If I insert LED retrofit bulbs into this ...
3
votes
1answer
819 views
Shock when Installing Fluorescent Bulb 50VAC between frame and GLASS of Lamp - New Ballast Installed
I have a ballast that we are replacing in a church. There are approximately 12 dual lamp T12 Fixtures in parallel drops. The fixtures are all in line -- but L1, Neutral and Ground are parallel drops.
...
1
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1answer
49 views
Trying to replace 1988 t12 w/ led 4ft bulbs
My question is this:
I removed the t12 ballasts, and direct wired the 2 ends of the fixture, one to each wire coming from the box.
I put in t8 LED bulbs. They don't light.
They are Sylvania 5000k 32 w ...
0
votes
1answer
116 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 (...
1
vote
0answers
2k views
How do you remove a U-shaped fluorescent light bulb? [closed]
I need to replace a U-shaped fluorescent light bulb, but can't figure out how to do it. Any suggestions?
0
votes
1answer
161 views
Why new 32W circular fluorescent light bulbs keeps getting blown?
Recently one of my ceiling light's bulb just got blown after lasting for quite a few years. I tried to replace it with a new one and the moment I turned it on, the bulb would blink once quickly say ...
5
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2answers
1k views
LED T8 tubes: plug-and-play or direct-wire?
I want to install some good bright LED lights in a shop. I have access to some nice fluorescent-type fixtures for cheap or free (two 4-ft T8 tubes), so I want to just use them with LED replacement ...
0
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2answers
442 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 ...
3
votes
1answer
613 views
Why do LED retrofit instructions say to leave the ballast in the fixture?
I'm looking at retrofitting fluorescent fixtures in my basement for single-ended LED tubes. The electrical and wiring concepts I have down; I could probably do it with my eyes closed (but anyone ...
0
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1answer
40 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 ...
0
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2answers
121 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 ...
1
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4answers
9k views
How do I choose the correct fluorescent ballast?
I have a fluorescent fixture which takes tubes. The fluorescent ballast has gone bad, or I want to upgrade to the latest. How do I select the correct ballast for my fixture?
1
vote
2answers
66 views
Power issues with old fluorescent lamp
I decided to repair an old fluorescent lamp cabinet I have but i am no electrician and have no idea how the actual system works. I bought a new lamp (T5) and a new starter so I just have to figure out ...
1
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0answers
27 views
Hard wire into a recessed fluorescent can
Can I /or how can I hard wire a new ceiling hanging pendant into the existing fluorescent can in my dining room. I live in a building and have no access above.
Upgrade Time
2
votes
1answer
531 views
How to bypass the ballast on this fluorescent fixture?
I have some fluorescent fixtures in my basement that I would like to convert to LED, using bulbs that require a ballast bypass. However, these fixtures don't have a centrally mounted "black box" ...
2
votes
2answers
1k views
Replacement Options for T12 Four light fluorescent light fixture
I have a good number of fluorescent light fixtures that are old the ballasts are going out. There are two ballasts per fixture. The ballasts are expensive when factoring in labor cost. Covering to T8 ...
0
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2answers
2k 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 ...
0
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3answers
5k views
Fluorescent fixture won't stay lit
I have a two-bulb F28T5 light fixture that went out and replacing the bulbs with new ones did not fix it. So I replaced the ballast with a new one. The lights come on but go out within a second or so....
6
votes
1answer
1k views
How do I label fluorescent fixtures converted to LED?
I am going to replace some regular fluorescent tubes that are about to burn out with LED ones and would like to add a sticker inside the fixture to advise a future owner to not install regular ...
0
votes
1answer
1k 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.
0
votes
1answer
505 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 ...
0
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2answers
643 views
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 ...
2
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2answers
6k views
My florescent lights need a shake or a hit to work
I have a Wave Twin Fluorescent Ceiling Light that doesn't light up in general.
If I switch it on, it only lights up a very small part at one end.
I need to shake it or give it a hit a couple of times ...
4
votes
3answers
14k views
Changing fluorescent tube: how many degrees to turn?
I have a broken fluorescent tube (housing is intact, but it flickers instead of lighting up properly) that I have to change (bottommost type in the image).
I can turn it about 20 degrees, but it ...
