Jason wrote:

>> 25W at 50mW per LED comes to 500 LEDs.
>>
>> So take ten of your panels, and you should get close to the brightness
>> of an average 100W light bulb.
> 
> That makes sense, but there's got to be more to it.  My 1W luxeon flashlight 
> produces about 10 times the light of that 2.5W panel of 5mm LEDs.

The flashlight is probably highly directional. Are you sure that it
actually produces "10 times the light"? How did you determine that? At a
spot in the center? Or by the size of the lighted area? Or... ?

Gerhard

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