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TECHNICLIGHTLighting Systems

Lumen ↔ Watt Converter

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Find your old bulb's LED wattage equivalent, or how many lumens a given wattage gives — instantly.

lm
Advanced settings
lm/W
When a catalogue product is selected its real efficacy is used; the 120 lm/W default represents a standard LED.
LED Equivalent
6.7 W
Luminous Flux
800 lm

About 6.7 W of LED is enough for 800 lumens.

Reference Table

Watt equivalents across four technologies at common lumen levels (±15% approximate).

The "watt" figure on a bulb box no longer indicates brightness — the real measure is lumens (luminous flux). This tool converts an old incandescent/halogen/CFL bulb's wattage into its real lumen output, then calculates the LED wattage that matches the same brightness. Compare the result across four technologies (incandescent, halogen, CFL, LED) in the reference table.