How many kilowatts of electricity does a 150 Watt electric stew use in an hour

How many kilowatts of electricity does a 150 Watt electric stew use in an hour


Power consumption is the formula: power (kw) × time (H) = power consumption, so 0.15 kW × 1 h = 0.15 degree



How to calculate the power consumption per hour of an electrical appliance?
As long as the formula is OK. In addition, for example, how to calculate the speaker AC220 V * 50 Hz
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The speaker is computer 2.1 speaker, Mabo M-111 (07 models)
220V 50HZ 60MA