Tagged Questions

A fluorescent lamp or fluorescent tube is a very low pressure mercury-vapor gas-discharge lamp that uses fluorescence to produce visible light.

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17
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1answer
2k views

Do “blown” fluorescent lights still use electricity?

When a fluorescent light fixture goes out, it often flickers and then after a while stops shining altogether. When this happens and when it finally dies is the circuit broken and does it still use ...
2
votes
2answers
111 views

Run 12v Incandescent Bulbs off Fluorescent Ballast

Can I use a 120v AC to 12v AC electronic transformer to power 12v bulbs? I have a 150 watt transformer that I tried connecting to a single 10w incandescent bulb, but the bulb just flickers at a low ...
0
votes
1answer
67 views

Using 6x58W fluorescent lamps instead of 6x55W, what could possibly go wrong? [closed]

I'm planning to buy a fluorescent photography lighting head, but the manufacturer specified it uses 6x55W lamps, but I want to use Philips Graphica 58W lamps. 3 watts more per lamp, doesn't look like ...
-1
votes
1answer
91 views

If your monitor screen flikkers, what could be generally the causes of this? [closed]

If your monitor screenlight (not data, just the licht behind it) flikkers, say 30 times per second orzo, what could be generally the causes of this flickering of the light generally speaking?
3
votes
1answer
156 views

Improvized small aquarium lighting

I have a small aquarium that has been illuminated so far by a 15W fluorescent lamp. The problem is that the ballast has broken (melted) after 2 years of use, and the only replacements I could find on ...
5
votes
1answer
107 views

What's the difference in fluorescent lamps?

The old tubular fluorescent lamps were 41 mm in diameter. New lamps are only 16 mm. Is there an electrical difference between the old and new? (Image from a Philips ad)
1
vote
3answers
541 views

How to light a fluorescent lamp?

There are a lot of circuits on the internet for lighting fluorescent lamps. But they don't reveal the working mechanism of the lamp itself. I'm more concerned about the theory rather than the ...
4
votes
2answers
521 views

Lighting Fluorescent lamp with plasma ball results in electric shock?

A friend of mine is a teacher and did an experiment in class. She held a fluorescent light next to a plasma ball and it lights up. This seems logical, the electrons flow from the plasma ball through ...
3
votes
2answers
3k views

1-10V fluorescent lighting digital control

I have a number of fluorescent lights installed that use 1-10V dimming. Note that this is not the same as 0-10V dimming as used in older theatre equipment. The control gear for the lights outputs 10V ...
5
votes
1answer
679 views

Can i use a SSR for switching a fluorescent light?

Can I use a SSR for switching a fluorescent light on or off? Specifically, can the SSR last for a long time, and can it withstand a very large number of on/off switchings? I would also appreciate a ...
7
votes
2answers
4k views

Serial capacitors in electronic ballast of a fluorescent lamp

Recently I repaired one broken electronic ballast of a linear 30W fluorescent lamp. Now it seems to be working as expected, but I had to make some changes to it and I'd like to ask if you see any ...
7
votes
3answers
7k views

Should I use slow fuse or fast fuse?

When I design something or going to add a fuse to place where fuse isn't used now, should I prefer slow or fast fuse? I understand that this depends on situation, but I'd like to hear what do you ...
7
votes
3answers
1k views

How do you dim a streetlight bulb?

I'm getting a streetlight, most likely with a HPS bulb (high-pressure sodium). I'll probably hook up some sort of sensor to turn it on only when someone is actually parking lot. Why do some ...
6
votes
1answer
756 views

Compact Fluorescent Lamp Load Calculations

I help build/wire up large illuminated carnival/parade floats, and in the past we have used around 11,000 40w/60w GLS BC light bulbs in festoon sockets, powered by a 800KVA 3 phase diesel generator. ...
16
votes
2answers
4k views

Electronic Drivers for Fluorescent Lamps: How is the DC-to-AC Conversion done?

Pretty much all (somewhat inaccurately named) electronic ballasts for fluorescent lamps run off a DC voltage and have to convert it into AC to operate the lamp. The DC supply can come from rectified ...