Choosing an LED Reflector / Optic - Recommendations?

Leichardti

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Hey guys. I’m trying to choose an LED optic / reflector for my DIY LED.
I’m building a DIY LED as some of you may have seen, usinf 25x Cree X-Lamps and some Luxeons.

I was planning on using one of the cheaper ebay 44mm reflector / optic combos, but are these actually any good?

Otherwise, what are some other good options that’ll fit a 21x21mm bank of LEDs?
I’m looking for a 90°-120° beam angle.
 

oreo54

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83 degrees approx..

optic-10255-luxeon-REBEL-ES-white-spot-image.jpg



50 degrees for the TIR..
 

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