Questions tagged [electronic-ballast]

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Detecting lamp failure in electronic ballasts

What would be a simple solution for detecting lamp failure in fluorescent tube ECG's? There are 3 control gears running 6 (40w/4pin) lamps that need to have detection of lamp failure. While ECG's have ...
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124 views

Repurposing CFL ballast for different bulb (UVC)

I am attempting to repurpose the (electronic) ballast contained within a CFL lamp to power a UV-C bulb (mercury discharge, uncoated tube) for disinfection purpose, and out of general interest in ...
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Efficiency or longevity issues when using 2 lamps on a 4-lamp fluorescent ballast?

To answer this question I guess we need to know the circuit construction details of commercial electronic fluorescent ballasts. Is there a downside (either power efficiency or ballast longevity) when ...
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Can I connect 4 fluorescent t8 18w lamps on 2x36w electronic ballast?

I had my old 4x18w electronic ballast die and they only had 2x36w one in local store. My question is since I have 4x18w lamps can I connect all 4 lamps and do i do 2 and 2 in series and then connect ...
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68 views

Can a fluorescent light electronic ballast fail and still supply voltage?

I am trying to debug a failed fluorescent light fixture. T8, 1x36W. I have checked the tube (vs. both a new one and a known working one), and this is not the problem. So I thought it must be the ...
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2answers
151 views

How to measure load detection for ballast output 18W

I have a high performance ballast of only 18W and 36W. I would like to do a detection circuit whenever the UV light tube does not have any light out, an alarm/signal can be triggered to replace the ...
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1k views

4 bulb Ballast only lighting 2 bulbs

I have a six T8 Fluorescent light fixture. The 2 inner bulbs are powered by a 2 bulb ballast GE232-120RES-DIY, and the 4 outer bulbs, 2 on each side are powered by a 4 bulb ballast GE432-120RES-DIY. 2 ...
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63 views

Powering HID lamp from 240 volts

I'm considering replacing a 300W / 500W R7 halogen fitting with one of those 12v HID car fittings, (and obviously customising the halogen lamp housing) I'm also trying to do it on a budget. I'm ...