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Compare lumens to watts

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Lumen is the term used to describe the total amount of light emitted by a light source, while wattage merely indicates the amount of energy it uses. As lighting becomes more and more energy-efficient, the same number of lumens is being achieved with lower and lower wattages. That's why, when you replace an incandescent bulb with an LED one, for instance, you should compare the number of lumens rather than the wattage to ensure the brightness is the same. The table below clearly shows the number of lumens that are generated by different types of bulbs at various wattages.

Type of bulb 200-300
Incandescent 25-30 watts 40 watts 60 watts 75 watts 120 watts 150-250 watts
Halogen 18-25 watts 35 watts 50 watts 65 watts 100 watts 125 watts
CFL 5-6 watts 8 watts 11 watts 15 watts 20 watts 20-33 watts
LED 2-4 watts 3-5 watts 5-7 watts 8-10 watts 10-13 watts 13-20 watts




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