Wattage VS Luminous Flux

LUMEN	INCANDESCENT	LED	CFL	HALOGEN
200 - 300 Lm	25 Watt	2 Watt	5 Watt	20 Watt
300 - 500 Lm	40 Watt	6 Watt	7 Watt	28 Watt
500 - 800 Lm	60 Watt	9 Watt	12 Watt	42 Watt
700 - 1000 Lm	75 Watt	10 Watt	14 Watt	53 Watt
> 1000 Lm	100 Watt	>15 Watt	>16 Watt	>70 Watt

Luminous flux (in lumens) is a measure of the total amount of light a lamp puts out. Wattage is the amount of watt a bulb uses in 1 hour. We've long identified bulbs by their wattage, but that is actually a measure of electricity, not the brightness of a bulb. The amount of light a bulb generates is measured in lumens. An incandescent 60-watt bulb, for example, gives off 750 lumens of light and LED bulbs can deliver the same amount of light using as little as 9 Watt! The amount of Lumen divided by the wattage will show you which lamps are most energy efficient.

Philips Incandescent Standard P45 E14

Philips Incandescent Ball 40W E14 230V P45

Beschrijving Philips Incandescent Standard P45 E14

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