Why are there three wires when connecting the lights?

Life Style

I bought an LED lamp, but there were 3 wires...

There are three types: white, yellow, and green. Shouldn't we just need two wires?

I don't know how to connect because there are three.


  932 3   7 years ago

pu1. The white line, the yellow line, the power line, and the green line, the ground line


2017-11-13

pu2. The green line is a ground line, but if there is no ground, you don't have to connect it.


2017-11-13

pu3. Thank you!


2017-11-13


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