Typical Luminous Efficiency of Frequently Used Lamp Types | ||||||||
Type | ||||||||
GLS | Tungsten Halogen | Metal Halide | Compact Fluorescent | Fluorescent Lamps | LED | High Pressure Sodium | Low Pressure Sodium | |
Wattage | 60 | 53 | 250 | 33 | 36 | 8.5 | 250 | 91 |
Lumen Output | 700 | 850 | 18,000 | 2250 | 3350 | 806 | 27,000 | 17,000 |
Lumens/Watt inc. Gear Losses | 12 | 16 | 64 | 68 | 84 | 95 | 98 | 175 |