How Many Watts Per Square Foot Lighting

A footcandle is 1 lumensquare foot so in this case we would need 120 area x 5 footcandles 600 lumens from the general.

How many watts per square foot lighting. In the first step of your calculations you need to choose the type of area and activity that you want to illuminate. The formula would look like this. However to get comparable results to that of HID lighting growers using LEDs should use around 40W of actual light output wattage per square foot.

Light output is measured in lumens. For example for a room 10 feet wide by 12 feet long multiply 10 times 12 to get 120 then multiply by 15 to get 180 watts. However if you cant make calculations or quickly need to know how many lumens are needed per square foot for a garage or workshop you can try the lumens quick guide below for an average estimate.

Aim for 40 to 50 lumens per square foot in the task area where youll need the most light a more moderate 30 lumens per square foot in areas that require accent lighting and a softer lighting. For example if you have 2 plants in a 4 square feet space. Approximately 25 kWhsquare foot are consumed by hot.

For example suppose our kitchen is 10 ft. One square foot of indoor grow space will typically require a minimum of 32 watts and a maximum of 50 watts LED grow lights. Divide the wattage consumed in the room by its area in square feet to calculate watts per square foot.

3200 x 50 160000. Low efficacy generic Amazon lights PPE. 3x3 area with a 315.

Lighting Design Basics and Terminology Part Two. Approximately 2 kWhsquare foot are consumed by ventilation. 8 rows From thousands of cases with hundreds of parameters growers had agreed that a minimum wattage of.