Estimate power consumption (Watts) from brightness (Lumens) for different bulb technologies.
Typical 60W Incandescent ≈ 800 lm
Estimated Power
8.9 W
Efficacy Used
90 lm/W
Lumens measure brightness, while Watts measure power consumption. Modern bulbs like LEDs produce the same lumens as incandescent bulbs but use much less power (watts).
Formula: Watts = Lumens / Efficacy (lm/W)