13w CFL Bulb Running on 72v DC

I opened up the back of a CFL lamp and place a positive & negative wire to the capasitors Basically bypassing the ac portion of the inverter an only powering the dc part .. and here is what i got ..

I made my own reflector to something similar to a yogurt cup painted chrome...

not bad for virtually free!! .. I will be running this direclty of my bicycle battery pack at 95v!

-steveo

Category:

Science & Technology

Tags:

• CFL
• Lamp
• modified
• for
• DC
• current;
• Headlamp;
• LED;
• Low
• voltage4
• lamp

[windoes98se]

lol you can use that a a bicycle headlight, that does not look like 72 votls of batteries, looks like it is around 24 unless thereis wires that hook up to the batteries in the backround

[randacnam7321]

Lamp modification is not necessary. The 'AC portion' of the ballast is just a graetz bridge rectifier, which turns the AC supply into unfiltered DC, the ripple of which is reduced by the filter capacitor.

Also, that ceiling fixture should use incandescent lamps as it is a sealed fixture. The fluorescent lamps in it will roast and fail early.