Making a very bright led flash light. use's lithium 18650 battery's . parts list.
10,000 led dx.com/p/diy-100w-10000lm-6500k-white-light-9-led-module-silver-dc-32-34v-156290#.UuWJ8WfnaUk~r.87047508
Heat sink http://dx.com/p/a73-professional-cpu-heatsink-cooler-cooling-fan-black-silver-126173~r.87047508
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