Enter the efficacy and power into the calculator to determine the lumen output of a light source. This calculator helps in understanding the brightness a light source can provide based on its power consumption and efficiency.
Lumen Output Formula
The following formula is used to calculate the lumen output of a light source.
LO = E * P
Variables:
- LO is the lumen output (lumens)
- E is the efficacy of the light source (lumens per watt)
- P is the power consumption of the light source (watts)
To calculate the lumen output, multiply the efficacy of the light source by the power consumption.
What is Lumen Output?
Lumen output is a measure of the total amount of visible light emitted by a source. The higher the lumen output, the brighter the light. This measure is important for determining the suitability of a light source for a given application, such as indoor lighting, outdoor lighting, or specialized environments.
How to Calculate Lumen Output?
The following steps outline how to calculate the Lumen Output.
- First, determine the efficacy of the light source (E) in lumens per watt.
- Next, determine the power consumption of the light source (P) in watts.
- Next, gather the formula from above = LO = E * P.
- Finally, calculate the Lumen Output (LO) in lumens.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
efficacy of the light source (E) = 80 lumens per watt
power consumption of the light source (P) = 10 watts
