According to the principle, the LED lamp can not be directly connected to the power supply.

The LED lamp must be powered by the matched constant current driving power supply when connected to the power supply. If the finished lamp is directly connected to 220V, there is no problem.

LED is a solid-state semiconductor device that can convert electric energy into visible light. It can directly convert electricity into light.

It should be noted that the damage of human static electricity to LED is also great.

Editing: hfy

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