Definition:The SI unit of luminous flux, equal to the amount of light emitted per second in a unit solid angle of one steradian from a uniform source of one candela.
Definition:Watts is a combination of Amps and volts. Watts is a measurement of the amount of energy being released. The higher the wattage is, the more power and output from the appliance.
How to Use Watts to Lumens?
- Enter the powerin watts.
- Select the source of light. Eg: Halogen Lamp, LED Lamp.
- Click on calculate button, you will get Luminous flux result in lumens.
Watts to Lumens Calculation:
The high luminous efficacy (more lumens per watt) is used by Energy saving lamps.
The luminous flux ΦV in lumens (lm) is equal to the power P in watts (W), n times the luminous efficacy in lumens per watt (lm/W):