olympus999
05-06-2007, 12:55 PM
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?
SAMPLE: ill buy 20w cfl, it emits energy worth of 80w. Which number i use ,when i calculate?