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What resistor for 12v HID?

How do I create a cheap " ballast" for an hid globe in my boat. 12v static and whilst charged by outboard stator. 

Do I need one? 

Dunno. Exactly what have you got ? HID lamps in my experience have to have their own special ballasts, to strike the light in the first place, and to regulate current.
gordyguy (author)  steveastrouk5 years ago
I bought these.

I'm after a slim resistor. Pretty sure they just require regulated voltage.

http://www.ebay.com.au/itm/400244693863?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

Hmm. No, they look like replacements only, and are intended to connect to a HT ballast to start them. You need this kind of thing

http://www.ebay.com.au/itm/35W-HID-Xenon-Slim-Ballast-Kit-H8-Purple-lights-2-Bulbs-1-/160655634218?pt=AU_Car_Parts_Accessories&hash=item2567d26f2a