-
1, Discover the mysterious material behind LED lamps! 2. led chip light is broken how to repair 3, led chip lamp and le...
-
1, What are the parts of LED lamps? 2. Lamp lighting commonly used led chip is 3, What is the difference between COB...
-
Or LED backlight is no booster transformer! If the PF700S chip can be restored to normal after light pressure, it indica...
-
LED display unit board common faults:1, the whole board is not bright: the board is not connected to the power supply; T...
-
1. First of all, it is necessary to confirm whether the rated voltage of the LED lamp bead is 12V, if it is not necessar...
-
Due to the characteristics of the LED lamp, the higher the temperature, the lower the luminous efficiency of the light s...
-
LED drive power supply causes interference LED drive power supply first power frequency AC rectifier to DC, then inverte...
-
will notThe heat of the led lamp will not light the paper, when the heat of the led lamp exceeds 170 degrees, the led wi...
-
The principle is very simple, in fact, there is an MPU chip on the driver board, which is written in advance to control...
-
To this problem, first check whether the power input circuit components are normal, such as: power supply insurance, var...
