Rich:
the large LEDs are still too expensive, I am at the present evaluating and design them for use in airplane internal lighting.
The BOEING 787 to be shown tomorrow Sunday is lighted all the interior with LEDs, for reading and for ambient with capabilities to be light level adjustable and as well every module has to have AUTO SELF testing and failure report to the main computer in the plane, for it to communicate via satellite to the on course landing site for immediate module replacement without any airplane delaying replacement time
In addition the light beam has somewhat narrow dispersion cone, requiring additional optical parts to do the proper light coverage.
The low volume price is too high for some alternative energy systems and it would be better to have the small 10 mm size in multiple use to cover a better lighted area.
For the light output versus watts, still the small fluorescent lamps outshine the LEDs, this based on large lighted areas like a room.
- 0r so Euros for a 5 watts in a reflector is too expensive, I think.
- volts input but no indication of a pwm controller current source.
Nando