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What is the daily power consumption of the 12V 1A power adapter?

Article Source：Kinri Energy | Author：Kinri Energy | Issuing Time：2024.05.15
The 12V 1A power adapter is very common in our daily life, such as routers, set-top boxes, speakers, and other devices that use this adapter for charging. So how much electricity do these appliances consume per day? How much is a year?


12V ROUTER POWR ADAPTER

Electronic devices such as routers and set-top boxes at home are usually powered on and working 24 hours a day. For ease of calculation, we assume that this 12V 1A wall mounted power adapter is fully loaded 24 hours a day, with an output voltage of 12V and an output current of 1A. According to the physical electrical formula P=UI, the electricity consumed in one hour is W=PT=12 * 1 * 1H=12Wh, so the energy consumed in one day is 12W * 24h=0.288 kWh. It consumes 0.288 * 365=105.12 kWh of electricity per year. Of course, 105.12 kilowatt hours of electricity is required when the 12V 1A power adapter is fully loaded throughout the year, and the actual power consumption is slightly lower.

Don't be fooled by the fact that the 12V 1A power adapter consumes very little electricity in a day, but over time, it requires a considerable amount of electricity to be consumed over the course of a year. If the adapter you purchase is of a miscellaneous brand, with unreasonable circuit design, poor materials, and low current conversion efficiency, it will consume more electricity.

Therefore, the author still suggests that you choose a large brand of 12V 1A power wall adapter with good materials and high energy conversion efficiency. Kinri Energy is very good. It has been a power supply manufacturer for 18 years and is a power supplier for large enterprises such as Huawei, Xiaomi, and Philips. It has a good reputation and reliable quality!
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