Well I have been playing around with some LED bits and pieces that were given to me, trying to get some light output. I used Achesalots' Dual Luxeon V design http://myfwyc.org/Timberlake/DualLuxV as inspiration as I was given some Luxeon V's and some custom molded reflectors. I wanted to keep the design as simple as possible and the cost at a bare minimum. For the driving circuit I built a $1 "constant current source" circuit as described in this Instructable http://www.instructables.com/id/E0TL4RID3YEWIJMKVI/. I currently have it set for an output of only 500ma as that was all I had for resistors lying around at the time. Also have the batteries hooked up in series to get enough juice to light up the Luxeon V's. I am thinking I am going to use this light as an emergency light. Throw it in my Camelbak for that ride when I am out there a little longer than expected. The black straps holding the batteries to the housing are Velcro so I just have to reach up and stick it to a Velcro piece attached to my helmet. Like I said earlier, I was just playing around with some parts that were given to me, but I am really impressed with this light so far and its potential. Did a run time test with the alkaline batteries and got over 3 hours!! Very nice light with no heat at the housing. I am going to build another version of the Amoeba using a couple of Crees or SSC's with some of these Lithium Ion batteries hooked in parallel http://www.batteryspace.com/index.as...OD&ProdID=2373.
msxtr - I know, I know - I will get some beam shots as soon as possible.
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