Conversion
Estimate lumen output from wattage and the source efficacy.
lumens = W × efficacy (lm/W)
Typical LED efficacy is 80–120 lm/W. Worked example: 9 W × 100 = 900 lm.
Estimate lumen output from wattage and the source efficacy.
Typical LED efficacy is 80–120 lm/W. Worked example: 9 W × 100 = 900 lm.
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