UK Pocket light question

Buck91

Flashlight Enthusiast
Joined
Feb 26, 2007
Messages
1,760
Location
USA
Does anybody know what current the red led drop-in uses? With the bezel-twist switching, I haven't a clue how to measure it! :crazy:
 

Lynx_Arc

Flashaholic
Joined
Oct 1, 2004
Messages
11,212
Location
Tulsa,OK
Not a clue...but my guess is take the current going into the boost circuit and divide it by about 4 for an estimat as boost circuits are perhaps 50% efficient in older LED lights and red LEDs have a Vf about 2-2.5v if I remember. So if 50ma is going in you are perhaps getting 12ma to the red LED. I have measured the current into the boost circuit on a eled (white) uk2AAA before.... almost takes 3 hands and test leads to accomplish.
 
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