Last updated on September 8th, 2026 at 01:08 am
Lumens per Watt Calculator
Calculate lighting efficiency and estimate light output from wattage.
Enter the bulb or fixture’s light output.
Enter the electrical power consumed.
Your Result
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Enter values to calculate
Typical Lighting Efficiency
| Lighting Technology | Typical Efficiency |
|---|---|
| LED | 80–150+ lm/W |
| CFL | 50–70 lm/W |
| Incandescent | 10–17 lm/W |
| Halogen | 15–25 lm/W |
| Metal Halide | 70–110 lm/W |
| High-Pressure Sodium | 80–150 lm/W |
