EDIT
sorry i am using 2 types the RED/amber and the whites, the voltages are hugely different
I should have known its always that way with the different types, just stupidly thought the LS was different
i have been running the ls's off of 3 1.2v AA nimys but the RED is over 400ma and they get hot as heck, on thier own heatsync.
in the video light the WHITES run at almost 4 at about 3.78 with 3 of them on a 12v regulated, the only drop is the wire lengths
they're doing fine after 5 hours of use, but they are excessivly heatsynced,
there is thermal current runaway
but the AA bateries withe the RED just start lowering in voltage when the current gets going, i guess it would be a problem if one Just removed them from charge, then ran it non intermittentally.
the 12v ones 3 WHITES in a bank the current keep going up for a while then it cools out, but it is very high, i think the life of them wont be as long, and the sync was definataly needed
running the nitchitas WHITES at 4v with 3 to a bank on the same 12 regulated toasted the ones that were getting Heat from the others (center ones), so me thinks that the RED LS heatsynced can handle more than the little ones UNsynced
the things sure can put out a lot of light even at the lower voltages/currents and they are LOADS more efficient like that, between 300 and 500ma the visable difference sure isnt 2/5ths more like squezing out the last 1/5th
course i did lose ONE its was so simple and stupid too, i just reversed it, heck i reversed all the others at one time or another, but this one died without a blip
it was the cyan one
darn i hate learning
burning these things at over 350ma the red/amber or 385ma for the white, is losing them slowly the specs show they will be losing 20% in 10,000 hours running Normally
i just tested the red again
(it is Lower voltage than the whites & cyan)
and its at 700ma according to my cheap meter, when used on half lifed NIMY batteries
the voltage is only at 3.25
so
it would certanally warrent a resister to have any kind of life out of it even with 3 nimhy batteries
none of this really is making any sence, as the peak current is 500ma the thing should be toast mabey its just residual retnal burn
. i got a white ls led.
now what? do run it striaght from 3v ,4.5 ,2.4 ,3.6...? i don't do resisters so forget that. forget heatsinks too because i don't solder. i don't need retrofit instructions because i'm making my own project box flashlight. i just need to what best to power it from. i prefer 1.2v rechargebles but am open to anything
