I purchased a streamlight luxeon 3aa light recently.
I measured the current drain from the supplied
duracell batteries.
It was .51 amps. I removed the disposable alkalines
and ran the light on nickel metal hydride rechargables.
There was a higher current consumption for the first 5
minutes of .55 amp falling off to about .44 amps shortly
after. 30 minutes later the current drain reduced to .4 amp.
I went back to the orignal batteries and noted .52 amps
led load (this is a resistored led only). The following day
a ran rechargables for several hours went back to the orignal duracell
batteries to measure current consuption now at .53 amps
Now I purchased another vom amp meter. I shows .53 amps also (ok).
After another day running rechargables I go back to the
orignal duracells and measure current it seems to increase .1 amp
per 3 hours of (overdriven) runtime using rechargables.
After about a week of running rechargables (3 hours daily)
my orignal duracells show .55 amps of current draw
(confirmed using two different meters)..
I'm now getting nervous about this overdriven
led being damaged and pulling more current .
I decided to check the current draw from other brands
of batteries. Enegizers show .66 amps (damn).
Riteaid cheapes .6 amp. 99 cent store batteries
show .61 amps. My led lite now pulls .56 amps from
orignal (unused new) duracell batteries.
Will the reference current measured using the orignal
batteries keep increasing till the led diode short circuits.
Is this the effects observed by overdriving leds.
This streamlight luxeon star 3aa light is stock unmodified.
My research of luxeon 1 watt led indicates .35 amp at 3.42
volts to be the rating. So any current measured above .35
amp I term as overdriven? What happens when you blow a luxeon
does it go short circuit, open circuit, pull more current as
its being spent (reduced lifetime) by overdriving ?
I measured the current drain from the supplied
duracell batteries.
It was .51 amps. I removed the disposable alkalines
and ran the light on nickel metal hydride rechargables.
There was a higher current consumption for the first 5
minutes of .55 amp falling off to about .44 amps shortly
after. 30 minutes later the current drain reduced to .4 amp.
I went back to the orignal batteries and noted .52 amps
led load (this is a resistored led only). The following day
a ran rechargables for several hours went back to the orignal duracell
batteries to measure current consuption now at .53 amps
Now I purchased another vom amp meter. I shows .53 amps also (ok).
After another day running rechargables I go back to the
orignal duracells and measure current it seems to increase .1 amp
per 3 hours of (overdriven) runtime using rechargables.
After about a week of running rechargables (3 hours daily)
my orignal duracells show .55 amps of current draw
(confirmed using two different meters)..
I'm now getting nervous about this overdriven
led being damaged and pulling more current .
I decided to check the current draw from other brands
of batteries. Enegizers show .66 amps (damn).
Riteaid cheapes .6 amp. 99 cent store batteries
show .61 amps. My led lite now pulls .56 amps from
orignal (unused new) duracell batteries.
Will the reference current measured using the orignal
batteries keep increasing till the led diode short circuits.
Is this the effects observed by overdriving leds.
This streamlight luxeon star 3aa light is stock unmodified.
My research of luxeon 1 watt led indicates .35 amp at 3.42
volts to be the rating. So any current measured above .35
amp I term as overdriven? What happens when you blow a luxeon
does it go short circuit, open circuit, pull more current as
its being spent (reduced lifetime) by overdriving ?