luxeon rebel 3-up vs cree

[Axkiker]

So I have decided between either the luxeon rebel 3-up design and the cree's.

I can purchase the rebels from led supply for 14.99 and they are said to produce 115 lm at 700ma

the crees show a max power rating of 1000ma and produce 30lm at 350ma so im guessing they will produce somewhere around 50lm at 750ma and the price is something like 8.95 a piece from led supply.

both that im looking at are to produce blue light.

any thoughts as to which would be better. If I go with cree I would rather get them without the star base. I could fit more of them in my fixture if I just etched a board and soldered them in myself. However finding them like that seems to be a pain. The rebels on the other hand are so smal I think I like the idea of having 3 per star board.

anyways any thoughts.

 

[codypop]

Cutter has a board which will take three CREE XR-Es, SSC P4s, or Luxeon I, III, or K2s.

Here is the link.

They'll even sell it with Cree LEDs mounted.

 

[purduephotog]

So I have decided between either the luxeon rebel 3-up design and the cree's.

I can purchase the rebels from led supply for 14.99 and they are said to produce 115 lm at 700ma

the crees show a max power rating of 1000ma and produce 30lm at 350ma so im guessing they will produce somewhere around 50lm at 750ma and the price is something like 8.95 a piece from led supply.

both that im looking at are to produce blue light.

any thoughts as to which would be better. If I go with cree I would rather get them without the star base. I could fit more of them in my fixture if I just etched a board and soldered them in myself. However finding them like that seems to be a pain. The rebels on the other hand are so smal I think I like the idea of having 3 per star board.

anyways any thoughts.

If you're looking to make a pure blue light you really ought to look at mw of power at whatever wavelength you're looking at rather than lumens. Lumens go through an efficacy curve calculation (multiplier) and an unscrupulous manufacturer might choose a more opportune wavelength to get more 'power' in their numbers.

 

[Axkiker]

If you're looking to make a pure blue light you really ought to look at mw of power at whatever wavelength you're looking at rather than lumens. Lumens go through an efficacy curve calculation (multiplier) and an unscrupulous manufacturer might choose a more opportune wavelength to get more 'power' in their numbers.

Actually im just looking for the max amount of blue light I can get. It doesnt matter to me if its a true blue or not. They will be in murkey water anyways so as long as im close to blue its good to go.