Fluorescent Light Lux Calculation

Ev lx 10 76391 p w η lm w a ft 2 watts to lux calculation with area in square meters.

Fluorescent light lux calculation.

Choose the area of the house that you want to illuminate. Watt and lux units represent different quantities so you can t convert watts to lux. Using the foot candle calculator. Multiply the area in square meters by the lux or the area in square feet by the footcandles.

Let s say you re planning the lighting for your kitchen including the kitchen counter. Calculate the amount of lumens you need. The total output of visible light from a light source is measured in lumens typically the more lumens a light fixture provides the brighter it is. You can calculate lux from watts luminous efficacy and surface area.

Footlambert fl is defined as the luminance of a surface reflecting transmitting or emitting one lumen lm of illumination per square foot of area in the direction being viewed or the conventional unit of brightness. Footcandle fc is the amount of light flux density. For the whole kitchen it is 108 lux and for the counter detailed tasks 538 lux. The amount of light that is cast on a surface is called illuminance which is measured in lux this can be thought of as light intensity within a specific area.

It is the unit of measure used when describing the amount of light in a room and is expressed in lumens per square foot. Work out how many bulbs you need. Watts to lux calculation with area in square feet the illuminance ev in lux lx is equal to 10 76391 times the power p in watts w times the luminous efficacy η in lumens per watt lm w divided by the surface area a in square feet ft 2.