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Convert between watts (W) and lumens (lm) for a variety of different lightbulb efficiencies
- Lumens to Watts Converter
Convert between lumens and watts for incandescent, halogen,...
- Lumens to Watts Converter
Use this calculator to estimate the lumen output that will be created from your chosen wattage of light source. Enter the wattage, then either choose the most appropriate light source from the list or enter the lumens per watt of your light source, to get the light output in lumens.
Just remember to match the lumen output and you'll always get the brightness you want. To make sure you get the same brightness from your energy efficient bulbs, use this chart to compare the wattages of different technologies.
This free online calculator will help you convert lumens to watts and vice versa. So you can calculate how many lumens the new LED lamps should have based on your previous lights. If you already have some LED lamps on your shortlist, you can convert their lumen value into the output (in watts) of previous lighting.
The old days of selecting light bulbs by wattage are over. Use our lumens to watts conversion chart to choose the right LED bulb every time.
Convert between lumens and watts for incandescent, halogen, CFL and LED lightbulbs. Lumens is a unit of luminous flux (brightness), watts is a unit of power.
Watts to Lumens calculator. It is a conversion calculator used to convert the electric power in watts (W) to the luminous flux in lumen (lm). It has two text fields and two controls, the ‘Calculate’ and ‘Reset’ buttons. They are both active and perform independent functions of the calculator.
