Pretty neat! I used a Luxeon "dental blue" LED on a copper heat sink in
the Denmat Allegro
(http://www.denmat.com/solsheet/allegro/allegro_info.htm) dental curing
light. The current regulated boost converter is putting 1.5A through the
LED. It's bright! (and the product uses two pics in the device and another
in the charger).

Harold


> Super tiny variable output LED torch - 100 mW to 9 watt claimed (!)
> variable input to Luxeon module.
>
>         http://www.candlepowerforums.com/ubbthreads/showflat.php?Cat=&Number=633513&page=0&view=collapsed&sb=5&o=365&fpart=1&vc=1
>
> I'm posting this mainly because of the pictures which show lighting
> levels at a range of power inputs. See about 80% of the way down the
> page. Goes from dim spot to "broad daylight".
>
> There's no real rocket science here, but quite a bit of engineering
> learning in optimising boost converter and keeping the module alive at
> above rated input.
>
>
>         RM
>
>
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