Watts to lumens Rechner

Elektrisch power in watts (W) to luminous flux in lumens (lm) Rechner and how to Berechnen.

Enter the power in watts, luminous efficacy in lumens per watt and press the Berechnen button to get the luminous flux in lumens:

* the predefined luminous efficacy values are typical / average values.

Watts to lumens calculation

Energy saving lamps have high luminous efficacy (more lumens per watt).

The luminous flux Φ_V in lumens (lm) is equal to the power P in watts (W), times the luminous efficacy η in lumens per watt (lm/W):

Φ_V(lm) = P_(W) × η_(lm/W)

Enter power in watts:		W
Enter light source:
Or enter luminous efficacy in lumens per watt:		lm/W

Luminous flux Ergebnis in lumens:		lm