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Old 10-29-2008, 01:00 PM
kcmcf kcmcf is offline
Motorized Bicycle Member
Join Date: Jun 2008
Location: Alliance,NE
Posts: 31
Default ac or dc

ok so i would like to put a bigger light on my bike put i have read that some of the motors are putting out ac. how do you check and see if it is or isnt ac or dc.

i have a small battery that came out of a spot light that i was planing on hooking up to the white wire then to lights. right now i am running a genarator light kit off of the white wire. the front puts off enough light that others can see me but i would like more as i drive home at 11:30 pm every night. i have read that you could put a zener diode and a resitor in line to make a regulator put what size's are they. i have a small meter if someone could tell me what to check for then i could build something that would work for me.
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Old 10-29-2008, 01:12 PM
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Finfan Finfan is offline
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Join Date: Aug 2008
Location: Tucson, AZ USA
Posts: 871
Default Re: ac or dc

I have heard that the white wire puts out a very noisy AC voltage. I would not recommend hooking it up directly to a battery. I haven't tried anything yet but I suspect you would need to put a rectifier on the output and a voltage regulator in line before using it to charge a battery. You might be better off just springing for one of the brighter LED systems available for bikes.
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