How to distinguish the LED lamp wattage?
Look at the power input voltage and current, multiplication is the wattage.
Open shell, look at the LED module inside the chip count, are generally use 45 mil, single chip is 1 w, 30 w, 30 is 50 is 50 w, 100 is 100 w, the chip number add up to the wattage.
Look at the size of shoot the light, usually different wattage of the radiator is not the same.