Street lamps flickering primitive solar reason is what? Engineers told

LED lights for energy saving, widely used, and even a lot of cities have started to use LED lights instead of high pressure sodium lamp. When we drove by, occasionally see some street lights flashing, what reason is this? Guangdong lighting engineers to tell you three reasons will guide

due to energy saving, led street lights are widely used, and even many cities have begun to use led lights instead of high pressure sodium lamp. When we drove by, we occasionally see some street lamps flickering. What are the reasons? Guangdong lighting engineers to tell you, there are three reasons lead to lights flashing. One reason: power leds lamps power generally USES constant current power supply. Constant current power supply by adjusting the output voltage to ensure constant current, so as to ensure the internal resistance of light emitting diode lamp bead changes. However, there is a range of the adjustment. When beyond the scope of the power supply into the protection state, characterized by street light flashing. Second reason: lights, led lights flashing a second reason is the lamp bead of failure. If the light bead chip is beyond the scope of the lamp manufacturers can afford current, also can appear flashing state. The third reason is water into the lamp lights when the lamp holder submerged, lamp bead or power poor contact and flashing. Guangdong lighting engineers to tell you, when the street light flashing, first check flooded street lamp. If the lamp has not been submerged, first check the power supply is normal. If power off, please replace the power supply. If the power supply is normal, replace the lamp bead.