What are the reasons why the LED floodlight is not bright?

People who do lighting projects have encountered the phenomenon that the led floodlight is not bright, then you know what is the reason?

Check the power grid, if you are installed with multiple lamps, other led lights are on, only one is not bright, at this time the lamp is removed, another lamp installed, the light indicates that the lamp is a problem, not bright may be a problem with the power grid. If it is the problem of the light, then separately connect the four electricity, if it is not bright, let's carry out the third step. The power supply is broken. Smell whether the power supply has the smell of burning, or the power supply has no bulge phenomenon, if there is, it indicates that the power supply is burned out, change a new power supply to try again, if it is bright, it indicates that the power problem, if it is not bright, let's look at the fourth step. See whether the led lamp beads are black and fall off.

Ruled out the above reasons, that is to see whether the led lamp beads black, off, which can be seen with the naked eye, if it is black, off is the led lamp bead problem. The LED floodlight is broken, mainly the light source and the drive, the most important is that the light source and the power supply are not good. If there is a tool that can detect it, you will know which is broken, and the bad power supply of the floodlight accounts for the majority, and the power supply provides a stable working voltage for the light source.

The power supply in the process of converting alternating current into direct current problems, may lead to lighting floodlight is not bright straight flash, this general can not be repaired, directly change the power supply, of course, before you change to find out the number of light source, current and voltage, whether it is foot watt, if you do not find out rushed to change the power supply, change the wrong will not be bad for long or not bright enough. Another phenomenon is that the LED floodlight can be bright for a while and then start flashing or turn on the light, which is mainly unstable power components, resulting in flash, the fundamental problem is that the quality of the power supply is too poor or the heat conduction is not good, the power supply itself after working for a period of time, the temperature rise of the power supply itself, resulting in unstable components of the power supply, and the temperature difference between winter and summer in some areas is large. The power supply operating temperature is too high or too low, can not be stable operation, objectively speaking, this power supply is unqualified products.