FYI - in case these have not been spotted yet....
OSRAM has some 1 Watt LEDs available in amber and yellow. They produce 15-24lm (depending on bin) for 400mA @ ~2.4V input. Efficiency is ~20lm/W. They are in a surface mount package with a metal heat slug on the bottom meant to be soldered to a circuit board. (Heat sink slug is electrically connected to cathode).
These are InGaAlP devices with a 120 degree lambertian output. The good news is that they are only $3.5US each or $2.80US each in multiples of 10 --- at Digikey!
Now if OSRAM can make Red, Orange, Green, Blue, & White LEDs at a similar price!!! /ubbthreads/images/graemlins/grin.gif /ubbthreads/images/graemlins/cool.gif
I'm going to try and get some to fool with....
OSRAM has some 1 Watt LEDs available in amber and yellow. They produce 15-24lm (depending on bin) for 400mA @ ~2.4V input. Efficiency is ~20lm/W. They are in a surface mount package with a metal heat slug on the bottom meant to be soldered to a circuit board. (Heat sink slug is electrically connected to cathode).
These are InGaAlP devices with a 120 degree lambertian output. The good news is that they are only $3.5US each or $2.80US each in multiples of 10 --- at Digikey!
Now if OSRAM can make Red, Orange, Green, Blue, & White LEDs at a similar price!!! /ubbthreads/images/graemlins/grin.gif /ubbthreads/images/graemlins/cool.gif
I'm going to try and get some to fool with....