How to install LED tube, how to wire

The LED tube is a built-in power supply, so you can install the LED tube directly without changing it.

The LED tube is an external power supply. The original (electronic or iron core) ballast should be taken down, replaced with an LED power supply and connected to the LED tube.

Also need to pay attention to whether the LED tube is double-ended or single-ended, and the two ends are connected to electricity (note the positive and negative poles). Single-ended input is a single input but also needs to pay attention to the positive and negative.