Is turning off the lights more energy-saving or more energy-intensive?

First of all, let’s talk about the conclusion: turning off the lights at will saves electricity, there is no need to do it deliberately.

Because taking the most commonly used energy-saving lamps at home as an example, the instantaneous current when switching on and off is very large, which consumes more electricity than usual. If you really want to save electricity, consider turning off the lights when you are away from home for more than 3 hours.

1. Turn off the lights to save energy. Although there is an "instantaneous large current" when turning on the light, the time is so short that it can be ignored. However, you won't save much electricity by turning it off for those 40 or 50 minutes... There is no need to worry about one dollar a month.

2. Turning off the lights will waste more light. Mainly refers to fluorescent lamps and energy-saving lamps, but has little impact on incandescent lamps and LED lamps. The question asks about energy-saving lamps, so obviously we should focus on this.

3. Turn off the light and replace the switch easily. Replacing a switch is more troublesome than buying electricity, but most switches are damaged by accidental bumps or accidental short circuits, and not many are damaged by frequent pressing. (Of course, frequent pressing may accelerate wear and cause short circuit)

Four. In summary, just let nature take its course, there is no need to do it deliberately.