Jupiter vs. Luxeon I or III

are you sure that the jupiter is better than the luxeon?

after i read the tech-data of each i think not...

the binning on jupiter is:

P11 is like the Q flux of luxeon
P12 like between Q and R flux
P13 is full in R flux

the voltage is:

L like the J-K Vi of luxeon
M like the K-L Vi of luxeon

this mean that a R..H lux-I is much better than a P13..L jupiter

more the luxeon have a wider beam that is best for the use with a reflector...

at this point why choose a jupiter? /ubbthreads/images/graemlins/thinking.gif

Who said it was better? They both have some advantages that will allow them to be used in specific applications where the other would be a dismal substitute, IMHO.

BTW, I believe Nicha measures the lux after the LED is stabilized at the specified temp and drive current and not measured in a "flash". We may have a bit of mixed fruit at the get go. /ubbthreads/images/graemlins/icon3.gif

Lumileds has a real advantage due to their EOS system on the phosphor. The lambertian distribution of light with the Luxeon has its advantages for certain reflectors as you have suggested but for other reflectors, especially shorter focal lengths as well as certain TIR optics, the Jupiter will have a real edge.

Another consideration that will be manifest in finished commercial products will be the cost of the LED's. It's not for me to divuldge but at present prices, the Luxeon damn well better be a a better LED! /ubbthreads/images/graemlins/icon15.gif