Light typeTypicalluminous efficacy(lumens/watt) Tungsten incandescent light bulb 12.5-17.5 lm/W Halogen lamp 16-24 lm/W Fluorescent lamp 45-75 lm/W LED lamp 80-100 lm/W Metal halide lamp 75-100 lm/W High pressure sodium vapor lamp 85-150 lm/W Low pressure sodium vapor lamp 100-200 ...
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(lumens/watt) Tungsten incandescent light bulb12.5-17.5 lm/W Halogen lamp16-24 lm/W Fluorescent lamp45-75 lm/W LED lamp80-100 lm/W Metal halide lamp75-100 lm/W High pressure sodium vapor lamp85-150 lm/W Low pressure sodium vapor lamp100-200 lm/W ...
(lumens/watt) Tungsten incandescent light bulb12.5-17.5 lm/W Halogen lamp16-24 lm/W Fluorescent lamp45-75 lm/W LED lamp80-100 lm/W Metal halide lamp75-100 lm/W High pressure sodium vapor lamp85-150 lm/W Low pressure sodium vapor lamp100-200 lm/W ...