Cranks with a cree?

[LiteTheWay]

Does anyone know if there are crank lights (ie., dynamo/hand wind) lights with cree LEDs).

Some of them we get in Oz (Sontax, Nelson) are retty good and hold a charge for MONTHS after a minute or so of winding and the light output is pretty good too - but I surmise that they do not have cree LEDs which would make them much better.

 

[FirstDsent]

All crank and shake lights of good repute use power mizerly 5mm type LEDs. Such lights are designed to be power-conservative, sacrificing output in favor of runtime. Crees and Luxeons use WAY too much power for a crank light. You'd wear yourself out cranking a Cree crank light.

Bernie

 

[VidPro]

well the cree could be run at say 100ma, then you only have to crank 1-4
i believe that high efficincey 5mm white leds are just as efficent as a cree.
but the crank light also fluxuate lots, when "charging" so an underrun cree, would last longer.

when it comes to TIRING out trying to get a crank light to do anything other than run a very low power source, i tested to see if i could charge my PDA fully with one, and i could cope with about 15min of total cranking, then i had it.

good for a small radio, or a few Ma of leds.

and the parts and plastic gearing and crank and all certannly wouldnt cope with an hour a day of that.