led广告牌电源和普通电源一样吗
一、How long can an LED billboard last using a car battery? The billboard is not big
The battery in a car is generally about 40A. According to this calculation, it is about 480W. If you use LED If the LED billboard is 20 watts, it can be used for about 24 hours. If the LED billboard is 40 watts, it can be used for about 12 hours. This is used when the car is not started. If the car is started, LED advertising is used. If you use the card, it can be used permanently.