> You want to replace arc lamps with LEDs?
>>
>> !!!!!!!!!!!!!!!!!
>>
>>
> That is a very reasonable question and goal.
> There are a number of available LED-based lights and spotlights that
> can be adapted to use as replacements for a goodly number of arc-lamp
applications.
Looking at recent additions, about the strongest single led puts out about
1000 lumens at near 9 watts, cool. White. It would be advantage to use color LEDs not requiring filters, but the higher output ones only produce
150-200 lumens. The only true way to get a single spot with multiple LEDs is with fiber optics. It is possible to focus multiple LEDs, but it's tricky, and you end up with a large device.
Greg