How to change old fluorescent lamp tubes to led tubes?
The benefits of led tubes are more and more widely used, but there are still many people who are still not clear about how to replace led tubes.
In fact, it is very simple and divided into three situations
1. If it is an inductive ballast bracket, just remove the starter. Just replace the led tube. But there are requirements for LED tubes, buy a good quality such as Langte, its withstand voltage is as high as 305v, and it will not be damaged.
2. If it is an electronic ballast bracket, cut all the outgoing wires of the electronic ballast. Two incoming lines, namely the zero line and the live line N and L. The two lamp holders can be connected to one each. After connecting, install the led tube to power on.
3. All this if it still feels troublesome. The easiest way is to buy a Langte compatible led tube, no matter what kind of ballast it is. Just replace it directly. No circuit changes are required. But the disadvantage is that compatible lamps are slightly more expensive than ordinary lamps.
Note that the internal wiring of the inside caps is divided into two situations:
1. What is the internal wiring of the ordinary led tube lamp holder? In fact, the lamp has 4 pins. After you figure out the principle, you will understand how to wire it. The two pins of each lamp holder (also called plug) are short-circuited, which means that the two pins are connected. Don't worry about connecting two pins. As long as one of the pins is energized.
2. For compatible LED tubes, each pin of the lamp holder is independently energized. When testing the quality of compatible lamps, only single-ended power is needed.
