Hello! I have repaired many common desk lamps. According to your description, my analysis is this: the desk lamp is broken. There are several possible faults: 1, the light bulb (lamp tube) is burnt out.

The circuit board in the desk lamp is burnt out.

3. Poor contact of desk lamp switch

4. The lamp plug is in poor contact with the wiring board. I think the most likely faults are 1 and 2.

The specific solution is as follows: 1. Try changing several holes in the distribution frame.

2. Try switching several times repeatedly.

Go to the supermarket to buy the same light bulb (tube) and install it. If you have a round light bulb, 2-4 yuan1; If you have 1 1W bulbs, 5-8 yuan bulbs, 9W bulbs, each 8- 10 yuan. If it still doesn't light up, you can only find someone to repair the circuit board. I hope it helps you!