<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Aloha Mike:
Apparently it uses 6 of Nichia's highest rated 10,000mcd blue-green LED's. I know the LED's are not overdriven at all but sheesh, at 60,000mcd that is almost 3 times the mcd rating of the Trek 7 Green in a package the size of mini-mag!<HR></BLOCKQUOTE>
Actually, the Green Trek-7 (Expedition) is the daddy of all bright flashlights, and by a substantial margin.
Brock just lent me his to try, and I just about blew my eyes out of their sockets when I fired the thing up.
Now, the FlashLED
underdrives its LEDs; so that 10,000mcd per-LED rating probably won't hold much water here.
I did measure the current at one time, and I forgot if the total draw was 60 or 100 milliamps using "N" cells.
This would work to somewhere between 10 and 15 (or so) mA per LED. The benefits here are that the LEDs will live full and productive lives, and battery life is extended substantially.
The LEDs in the so-called "green-aqua" model are in fact Nichia pure green; probably either NSPG505BS or NSPG510BS. These have a wavelength of 525nm which appears as a bright, true green to the eye.
Since the eye is most sensitive to wavelengths near this, this will probably appar to be the brightest of all LEDTronics flashlights, with the possible exception of white under some conditions.
Figure those green LEDs are producing somewhere around 6,000mcd apiece when driven in the manner this flashlight drives them.
I don't believe you can boost these; but if you're willing to violate the flashlight in a rather private area (ahem!) you can carefully remove the head and pull off the board to see if one of the leads has a resistor on it.
If present, short it out with a thin wire, and reassemble the flashlight. Using the small batteries that it does, this hack will probably give you 20% to 40% more light at best, and will do so at the expense of overall battery life.
In my samples, the 6-LED white model had a resistor, while the 3-LED green model did not.
http://ledmuseum.home.att.net
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