LED tube have a wide range of applications, such as supermarkets, schools, office City subway, etc. in their daily lives, anything can appear in public places could be seen large-scale use of led tube! How to make led service life and brightness to achieve the standards of use are satisfied, is a subject of considerable significance! led tube to maintain long life and high brightness, the problem to be solved is that the four key technologies: power, LED light source, cooling, security.

Currently, almost all on the market led tube power are based on built-in. The so-called built-in power supply can be placed inside. The biggest advantage of this built-in can be made is a direct replacement for existing fluorescent tubes, without having to make any changes to the original circuit. So the shape of the built-in power usually is strip in order to go into the semi-circular lamp. There are two built-in power supply, non-isolated and isolated.

1. Installation:

LED tube comes with a constant current source, does not require rectifiers, starter. Generally over T8 led tube because the led tube space enough, the constant current source can be installed on the inside of the led tube. So, when installed, you can remove the original bracket in the rectifier, starter without led tube installed directly up on it.

T5, T4 LED tube does not fit the constant current source because the led tube is small, constant current source can only be mounted in the holder, so manufacturers are doing T4 \ T5 will be configured in the bracket, bracket equipped with a constant current source, and directional led tube installed. Opposite direction, the led tube
is not lit. We are considering adding some conversion circuit, so that even if the led tube is installed anti circumstances, the led tube can work properly.

Generally light board FR4 ​​epoxy board and aluminum plate. Since the LED tube in the light emission at the same time accompanied by a fever, so the LED during use shall be its heat dissipation. Epoxy boards almost does not have the ability to conduct heat, it is not suitable for the use of the LED. Aluminum plate, depending on the material ratio, the heat capacity is not the same. The higher the thermal conductivity, the better the heat transfer capacity, more suitable for LED heat, of course, the higher the cost.