What is equal to one lumen per square foot?
foot-candle
A foot-candle equals one lumen per square foot. This is a British measurement. Using the metric system, a lumen is measured by a square meter or a lux.
How many lumens for 120 sq ft?
Calculating Lumens For example, for a 120-square-foot room with a single overhead fixture with two light bulbs, each producing 800 lumens: 800 + 800 = 1,600 lumens. 1,600/120 = 13.3 lumens per square foot.
What is a lumen m2 a lumen ft2?
lumen/centimeter² lumen/foot² watt/centimeter² (at 555 nm) A lumen per square meter (lm·m⁻²) is the derived SI unit of illuminance and luminous emittance, measuring luminous flux per unit area and equal to 1 lux. 1 lx = 1 lm/m² = 1 cd·sr·m⁻².
How many meters are in a lumen?
Lumen/square Meter to Meter-candle Conversion Table
| Lumen/square Meter [lm/m^2] | Meter-candle [m*c] |
|---|---|
| 1 lm/m^2 | 1 m*c |
| 2 lm/m^2 | 2 m*c |
| 3 lm/m^2 | 3 m*c |
| 5 lm/m^2 | 5 m*c |
How many lumens is 100 square feet?
To determine the needed lumens, you will need to multiply your room square footage by your room foot-candle requirement. For example, a 100 square foot living room, which needs 10-20 foot-candles, will need 1,000-2,000 lumens. A 100 square foot dining room, which needs 30-40 foot-candles, will need 3,000-4,000 lumens.
How many lumens is 50 foot candles?
538 lumens
For example, 50 foot-candles would be 50 x 10.76 = 538 lumens.
What is fL in light?
A foot-lambert or footlambert (fL, sometimes fl or ft-L) is a unit of luminance in United States customary units and some other unit systems. It is rarely used by electrical and lighting engineers, who prefer the candela per square foot or candela per square meter units.
How much is a lumen?
A lumen is a unit that describes the amount of light provided over a given area. Each lumen is about equal to the light output of a single candle. Essentially, a lumen is a measurement of brightness itself. The fundamental difference between these two units is what exactly each of them measure.
How do you calculate lumens?
Determine the Needed Lumens A lumen is a unit measurement of light. To determine the needed lumens, you will need to multiply your room square footage by your room foot-candle requirement. For example, a 100 square foot living room, which needs 10-20 foot-candles, will need 1,000-2,000 lumens.