Engineering lamps manufacturer

Shandong about LED street lamp lighting factory co. , LTD. , analysis the reason of dead lamp: we often encounter the LED is not bright, also said the death of light phenomenon in the industry. The reason is nothing more than two things: first, the LED leakage through the p-n junction caused by the failure, make L

shandong street lamp lighting factory co. , LTD. , analyses the reason of light emitting diode die lamp; We often encounter led not bright, this is also the personage inside course of study says death light phenomenon. There are two reasons: first, the light-emitting diodes (leds) leakage current is too large, lead to PN junction failure, the led street lamp dimming, generally will not affect other led lights work; Second, disconnect the interior of the led street lamp wire, lead to leds without an electric current passes through, produce death lamp. This kind of situation will affect the normal operation of the other led lights. The reason is due to the low voltage led lights work ( Red, yellow, orange light-emitting diodes (leds) to 1. 8 v - 2. 2 v, blue, green, white light diode to 2. 8 v - 3. 2V) , typically used to adapt to the different working voltage series and parallel. Series of led street light, the more the greater the effect. As long as there is an open a led street lamp, the internal connection of the entire series of series circuit of led street light will be lighted. This kind of situation is more serious than the first one. Led lamp is the key to product quality and reliability. How to reduce and eliminate dead Angle, improve product quality and reliability, is the key to the packaging and application of enterprise needs to solve problems. Shandong street lamp lighting factory co. , LTD is a professional production of various kinds of solar street light, led street light, high lamp, lithium battery solar street lamp, garden lamp, landscape lamp, street lamp equipment manufacturers, high quality and low price. Welcome new and old customers to come to consult. In short, some of the reasons for lights, not list. From packaging, application to use every link will likely die modulation phenomenon. How to improve the quality of the light emitting diode products is packaging enterprises and enterprises should attach great importance to and seriously study the problem. From the chip and the stent to leds encapsulation went the whole process should be in accordance with the quality system to operate. Only in this way, can improve the quality of the light emitting diode products comprehensively, long life and high reliability. In circuit design, the choice of rheostat and PPTC components improve the protection circuit, to increase the number of parallel connection circuit, using constant current switching power supply and increase the temperature protection are effective measures to enhance the reliability of led products. As long as the packaging and application of enterprise went in strict accordance with the quality system running, the LED will improve product quality to a new level.