Enter the total lux (lx) and the total power (watts) into the Calculator. The calculator will evaluate the Lux Per Watt.
Lux Per Watt Formula
LPW = L / W
Variables:
- LPW is the Lux Per Watt (lux/watt)
- L is the total lux (lx)
- W is the total power (watts)
To calculate Lux Per Watt, divide the total lux by the power in watts.
How to Calculate Lux Per Watt?
The following steps outline how to calculate the Lux Per Watt.
- First, determine the total lux (lx).
- Next, determine the total power (watts).
- Next, gather the formula from above = LPW = L / W.
- Finally, calculate the Lux Per Watt.
- 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.
total lux (lx) = 50
total power (watts) = 40
Frequently Asked Questions
What is Lux?
Lux is a unit of illuminance, measuring luminous flux per unit area. It is used to quantify the intensity of light as perceived by the human eye that is hitting or passing through a surface.
Why is the Lux Per Watt metric important?
Lux Per Watt is an important metric because it measures the efficiency of a light source in terms of how much light it produces (lux) for each watt of power consumed. Higher values indicate more efficient lighting.
Can Lux Per Watt be used to compare different types of light bulbs?
Yes, Lux Per Watt can be used to compare the efficiency of different types of light bulbs or lighting systems. It helps in determining which lighting option is more energy-efficient, thereby potentially reducing energy costs and environmental impact.
How does the total lux affect energy consumption?
The total lux does not directly affect energy consumption; however, achieving a higher lux level typically requires more power unless the light source is highly efficient. Therefore, understanding and optimizing Lux Per Watt can help in achieving desired illumination levels while minimizing energy consumption.
