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Pros: Gives a lot o light... i promisse... Good packing and seams to be good qauality
Cons: A bit tricky to drive due to high forward voltage. Needs realy good cooling.
Other Thoughts: The best way to cool it is with a older CPU-cooler. Glue it to the heatsink with thermal silikon. The base aloy cooling area on the led fits perfect to the active cupper core on a PIII-cooler.
Bottomline: A nice led with a lots of power!! I can only recomend this led to users that know what they are doing. The dring circut you will have to build yourself
Pros: Very bright output and small form factor (for being 20w!) Runs well off of 18-20v as stated, 800 lumen claim seems to be right on. Fun to say you have an 800 lumen led! Low amperage consumption.
Cons: Produces TONS of heat! Not sure what the heatsink requirements or operating temperatures should be, that info would help. No drivers currently available (that i know of) to drive it at 20w.
Other Thoughts: I built a light around this led, using the metal reflector, a large chunk of aluminum, and a copper heatsink/fan combo designed to cool vga chipsets that moves 6cfm as one large heatsink, but it still runs hot. I'm not sure what the original use intentions were for this led, as it seems to require a massive heatsink. I gave it a 2 on usefulness because of this reason.
Bottomline: If you like playing around with leds, this one is for you. However if you are going to use it for extended use lighting, this just simply wont work because of the heat isssue.
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