القدرة الكهربائية في واط (W) to illumفيance in lux (lx) calculator and how to calculate.
أدخل القدرة في watts, luminous efficacy in lumens per watt, surface area in square feet / meters or spherical radius in feet / meters and press the احسب button to get the illumفيance in lux:
* the predefفيed luminous efficacy values are typical / average values.
The illumفيance Ev في lux (lx) is equal to 10.76391 times the القدرة P in واط (W), times the luminous efficacy η في lumens per watt (lm/W) divided by the surface area A في square feet (ft2):
Ev(lx) = 10.76391 × P(W) × η(lm/W) / A(ft2)
The illumفيance Ev في lux (lx) is equal to the القدرة P in واط (W), times the luminous efficacy η في lumens per watt (lm/W) divided by the surface area A في square meters (m2):
Ev(lx) = P(W) × η(lm/W) / A(m2)
