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Old 11-01-08, 05:45 PM   #1
ac7ss
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Join Date: Nov 2008
Location: Pugetropolis, WA
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Default Most efficient lighting

You may be surprised by the efficiency of different light sources, ranked by Lm/W look at these sources:
  • 200 Low pressure sodium
  • 150 Metal Halide
  • 100 28w t5 florescent tube
  • 93 36W t8 florescent tube
  • 60 cfl light
  • 26-70 LED (Very directional)
  • 24 quartz halogen
  • 15 standard incandescent
I have actually seen 35 watt metal halide lamps. They make very good outdoor lighting for constant on/long term on situations.

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