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Old 08-30-05, 03:39 AM
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BTW, I just checked. A Cygolite HID bulb assembly will start and run just fine using an off the shelf 12V NiMH battery pack. The startup behaviour is identical to that using the Cygolite battery (i.e., an initial warmup period, etc.)

I would guess that they have both a regulator and a ballast in there. Probably a soft start mechanism as well, if one is needed.

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