![]() ![]() You look at its product specifications and see that it has a max current of 5 amps. Knowing a device's wattage is necessary for estimating how much power it's using at a given moment, as well as how much energy it consumes overall.įor example, let's say you have this portable 12 volt fridge. It turns out your panel is a 100 watt solar panel. To calculate the watts produced by the panel in full sun, you would multiply volts times amps. Let's assume you own the following solar panel that is rated at 18.6 volts and 5.38 amps. Here's a simple example illustrating how to convert volts to watts. The conversion formula remains the same.Īlternate abbreviation: P = V × I Example Occasionally, you may also see watts abbreviated as P instead of W and amps abbreviated as I instead of A. To convert volts to watts, simply multiply the device's voltage (in volts) by its amperage (in amps). Here are some tables converting common AC and DC voltages to watts at various levels of current.
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