LED output comparison quick reference (Bridgelux, Cree, Philips)

jedimasterben

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https://docs.google.com/spreadsheet/pub?key=0ApFtf5lEQFtOdEJUVXVBY2JQNHZmODlDTFp3SU1SRnc&single=true&gid=0&output=html



Right now it includes Bridgelux BXRA 3, Vero 10, Cree XM-L, XM-L2, XP-E, XP-E2, XP-G, XP-G2, XR-E, XT-E, Philips Luxeon M, and Luxeon Rebel ES, all in neutral white only.

All outputs are normalized to 25°C. Figures given are luminous output at various amperages, the voltage, watts used, and the luminous efficiency (in lumens per watt). I rounded up or down on everything to keep it simpler, and the numbers are within a percent or two of where they would end up with the full calculation (eg, if the LED emits 500lm and uses 3.35v at 350mA, it would be 1.1725w and 426.44lm/w, but I rounded to 3.3v and 1.2w, giving 417lm/w, a ~2% difference).


This next one is for royal blue.

https://docs.google.com/spreadsheet...dVJiNGNXeUtZR3c&single=true&gid=0&output=html


It includes Bridgelux BXCE 45mil, Cree XP-E, XP-E2, XR-E, XT-E, Luxeon M, and Rebel ES.
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

  • Yes!

    Votes: 32 45.7%
  • Not yet, but I have one that I want to buy in mind!

    Votes: 9 12.9%
  • No.

    Votes: 26 37.1%
  • Other (please explain).

    Votes: 3 4.3%

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