High-Power White LEDs

This is my list of all of the high-power white LED technologies out there that I'm aware of, in order of efficiency (lowest to highest). Some LEDs are listed more than once at different power levels. I've marked things as vaporware if I KNOW they aren't available, however there are things which are not marked as such, which I haven't looked for, so they also might be vaporware.

ALL data below are reported by manufacturers, and as such are subject to varying levels of hopeful exageration.

Last update: October 25, 2005

Product Volts  Amps  Watts  Lumens Lumens/Watt Price Notes
Luxeon III     3.9 W 80 lm 20 lm/W    
Marktech Cotco Dorado     1 W ? 20 lm/W    
old Luxeon I     1.2 W 25 lm 21 lm/W   data from original (old) spec sheet
Osram Golden Dragon     2 W 40 lm 23 lm/W   numbers are from osram website - they do not add up
Luxeon K2 V-bin 3.85 V 1.5 A 5.8 W 140 lm 24 lm/W   VAPORWARE - out SOON
Luxeon V Portable 6.84 V 0.7 A 4.8 W 120 lm 25 lm/W    
Luxeon III 3.7 V 0.7 A 2.6 W 65 lm 25 lm/W    
Cree XLamp 3 7090     2.4 W 76 lm 32 lm/W   P-003 bin. Higher output bins available up to over 100 lumens, but I have no efficiency numbers for those
Nichia Jupiter     1.3 W 42 lm 32 lm/W    
Luxeon K2 V-bin 3.72 V 1.0 A 3.7 W 120 lm 32 lm/W   VAPORWARE - out SOON
Seoul Semiconductor Z-Power 5W 3.5 V 1.4 A 4.9 W 178 lm 36 lm/W   specs probably for best available bin
Cree XLamp 3 7090     1.2 W 44 lm 36 lm/W   P-003 bin. Higher output bins available up to over 100 lumens, but I have no efficiency numbers for those
Luxeon I     1.2 W 45 lm 37 lm/W   latest spec sheet
Luxeon K2 S-bin 3.6 V 0.7 A 2.5 W 100 lm 40 lm/W   VAPORWARE - out SOON
Seoul Semiconductor Z-Power 1W 3.5 V 0.35 A 1.23 W 52 lm 42 lm/W   specs probably for best available bin
Seoul Semiconductor Z-Power 2W 3.5 V 0.70 A 2.45 W 103 lm 42 lm/W   specs probably for best available bin
Luxeon K2 S-bin 3.42 V 0.35 A 1.2 W 60 lm 50 lm/W   VAPORWARE - out SOON
Citizen CL-L100     3.5 W 245 70 lm/W   VAPORWARE - out sometime in 2006

Additional Notes

  • The values for the Cree XLamp lumens (and hence, lumens per Watt) were estimated from the graphs on their documentation. Their stats list bins through Q-005, although only through Q-004 is listed as available. The Q-004 bin produces between 100 and 107 lumens. We don't know how much actual wattage fluctuates by bin, but if it does not fluctuate then this would be 42 lm/W at 2.4W and maybe 50 lm/W at 1.2W - in other words comparable to the highest-binned Luxeon K2s.
  • The Citizen CL-L100 is a different format, a sort of a tape. They claim it can be looped in a circle for use in reflectors. They are very vague on when it will be in production.

    Links

  • Lumileds
  • Seoul Semiconductor
  • Cree
  • Nichia
  • OSRAM
  • Marktech
  • Citizen

    Changelog

  • October 25, 2005: added Seoul Semi products.
  • October 17, 2005: Initial Version

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