#Lux lumen watt how to

What is the power consumption with illuminance of 50 lux, luminous efficacy of 15 lumens per watt and surface area of 18 square meters?

Watts = lux × (square meters) / (lumens per watt) So the power P in watts (W) is equal to the illuminance E v in lux (lx) times the surface area A in square meters (m 2), divided by the luminous efficacy η in lumens per watt (lm/W): The luminous flux Φ V in lumens (lm) is equal to the illuminance E v in lux (lx) times the surface area A in square meters (m 2): P = 0.09290304 × 50 lx × 200 ft 2 / 15 lm/W = 61.94 W Lux to watts calculation with area in square meters What is the power consumption with illuminance of 50 lux, luminous efficacy of 15 lumens per watt and surface area of 200 square feet? Watts = 0.09290304 × lux × (square feet) / (lumens per watt) So the power P in watts (W) is equal to the 0.09290304 times the illuminance E v in lux (lx) times the surface area A in square feet (ft 2), divided by the luminous efficacy η in lumens per watt (lm/W): The power P in watts (W) is equal to the luminous flux Φ V in lumens (lm), divided by the luminous efficacy η in lumens per watt (lm/W): The luminous flux Φ V in lumens (lm) is equal to 0.09290304 times the illuminance E v in lux (lx) times the surface area A in square feet (ft 2): Lux to watts calculation formula Lux to watts calculation with area in square feet

Lux to watts calculation with area in square meters.

Lux to watts calculation with area in square feet.

Lux and watt units represent different quantities, so you can't convert lux to watts. You can calculate watts from lux, luminous efficacy and surface area.

#Lux lumen watt how to

How to convert illuminance in lux (lx) to electric power in watts (W). * the predefined luminous efficacy values are typical / average values.