how is it calculated. By the amount of the watts cfl uses or by the amount of watts that cfl emit. English aint the best.
SAMPLE: ill buy 20w cfl, it emits energy worth of 80w. Which number i use ,when i calculate?
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how is it calculated. By the amount of the watts cfl uses or by the amount of watts that cfl emit. English aint the best.
SAMPLE: ill buy 20w cfl, it emits energy worth of 80w. Which number i use ,when i calculate?
use the wattage that the light emits not whats it worth in incandescents- use the 20w number