LED Wattage Calculator
Use our LED wattage calculator to determine how many watts are needed based on total lumens, fixture count, and LED efficiency.
Utilizing the 7:1 ratio, you can estimate the wattage by dividing 100 watts by 7, resulting in roughly 14 watts for the LED bulb. However, note that the luminous efficacy may differ among manufacturers, so the most reliable approach is to refer to the Lighting Facts label and aim to match the lumens of the LED bulb to ensure the desired brightness.
For example: A 60W incandescent bulb is equivalent to a 9W LED. A 100W incandescent bulb is equivalent to an 18W LED. Because LED technology differs from conventional incandescent bulbs, switching to LEDs often raises concerns about wattage. To achieve the same brightness (lumens), LED lights use significantly less energy (watts).
Our LED Wattage Calculator helps you reverse-engineer the required wattage by knowing how many lumens you need and how efficient your LED fixtures are. If you need 10,000 lumens and your LEDs are 100 lumens/watt, the total wattage is:
Remember: equivalent wattage is a measure of brightness, not power consumption; when choosing a lamp, pay close attention to the manufacturer's “lm” rating. What is the equivalent wattage for a 60 Watt LED bulb? A 60 Watt LED equivalent bulb consumes only 8-10 Watts while delivering the same brightness.
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