LED street lamps are the most widely used street lamps. With the widespread use of LED street lamps, there are inevitably some unscrupulous vendors in the market. In order to obtain more benefits, the quality of products cannot be strictly controlled, which not only affects LED street lamps. The market reputation is not guaranteed for the safe use of LED street lights. For the regular manufacturers, the LED street lights are factory with strict inspection standards. The following small series explains the quality inspection of LED street lamps.

 

First, the design principle of LED lamp power module:

 

LED Emitting Diode (Semiconductor Illumination Diode) is a high-efficiency solid-state light source that emits light with a weak electrical energy based on a semiconductor PN junction, with a certain forward bias voltage and injection current. Next, the holes injected into the P region and the electrons injected into the N region are radiated to the active region to emit photons, and the electric energy is directly converted into light energy.

 

Second, the inspection procedure of the LED lamp power module:

 

1. The product of led street lamp manufacturer has constant voltage output function or constant current output function or both functions. It should be tested by GB19510.12/IEC61347-2-13 safety standard.

 

2. For control devices that only have the function of controlling the logic change of LED brightness, darkness, flashing, color, etc., GB19510.12/IEC61347-2-11 safety standard inspection shall be adopted.

 

3. If a control device has the functions of both, it shall be inspected in accordance with the safety standards of GB19510.12/IEC61347-2-13.

 

The above is a description of the quality inspection of LED street lamps. At the same time, through our extensive practice, scientific design and strict inspection can not only ensure that the LED street lamp system is not damaged by lightning, but also eliminate the common mode of lightning for power supply equipment. And differential mode interference.