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30 December, 00:15

What is the power of a 12 V, 50 A light?

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  1. 30 December, 00:24
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    In an 12v outdoor lighting circuit, is our electrical consumption (our electrical bill) determined by the 50W 12V bulb that is connected to the transformer, or the 300W rated output of the transformer? I have equally received two answers; i. e ... (1) our electrical usage is based upon the 50W bulb, (2) our usage is determined by the transformer making available 300W, regardless how much of the 300W we use.
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