6V to LSHP? if I make 2X 123 or 2X CR2 twisty

cy · Feb 5, 2004

Hi all,

I'm thinking of making a 2x 123 or 2x CR2 twisty for my LSHP. Is 6 volts too much for a stock LS?

The plan is to take a AA twisty, carefully lathe the inside diameter to CR2 diameter since 2X CR2 is almost the same length as single AA.

If I understand correctly the LSHP is current regulated and first run is voltage regulated. What voltage range will these two lights tolerate?

Thanks,
CY

cue003 · Feb 5, 2004

The Arc LSH-P circuit is not desinged for 6V. It will probably fry the circuit.

cy · Feb 5, 2004

Thanks, what about the 1st run? how much voltage will it tolerate?

mahoney · Feb 6, 2004

Both old and new ARC circuts are boost circuits designed for input voltage below the Vf of the LED, about 3.5 volts for the stock 1 watt emitter. Anything much above that risks blowing the circut.

6V to LSHP? if I make 2X 123 or 2X CR2 twisty

cy

Flashaholic

cue003

Flashlight Enthusiast

cy

Flashaholic

mahoney

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