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Bli en energidetektiv

Apparat	Effekt (W)	Timer	kWh/år
PC-skjerm	130,0	5,0	237
Bærbar PC	30,0	2,0	22
Skriver	15,0	2,0	11
CD-spiller	10,0	10,0	37
Mikrobølgeovn	5,0	24,0	44
Batterilader	4,0	24,0	35
Klokkeradio	2,0	24,0	18