How to replace and repair the LED tube when it is not on: 　　 1. How to replace and repair the LED tube 1. If you find that the fluorescent lamp has a discoloration at the poles, or the surface of the fluorescent lamp is black and does not flicker, you don’t need to ask, it’s expensive, the lamp is broken, directly Turn off the power, and then hold one end of the tube and push it to the other end, like a spring, squeeze the tube to one end, there will be a gap to remove the tube. 2. Install the new tube directly, first insert the contact of one end of the tube into the lamp holder, and merge it into the previous step, squeeze the tube to the installed end, and then there will be a gap on the other end, directly Just insert it into the lamp holder. 2. Replace and repair the LED light tube starter 1. The newly replaced light tube will still flicker for a long time before it can be started. At this time, it may be that the starter is broken. If it continues to flicker, the energy consumption of the tube will be reduced and it will be reduced. The service life of the short tube. 2. First, you must get a suitable starter. For example, the "4P" starter is suitable for 30 to 40 watt straight tubes. After finding the correct specifications, remove the old starter. First of all, it will benefit the previous one. This method first remove the lamp tube, and then rotate the starter to the left to remove it.　　3. Turn over the new starter and see that there are two circular notches on the back.　　4. Align the circular notch with the hole on the fluorescent lamp holder, and then turn to the right to tighten the starter.