1. The LED lamp beads do not match the LED driving power supply. The normal single full 1W lamp beads bear current: 80-300mA, voltage: 3.0-3.4V. If the lamp beads chip is not full power, it will cause the flashing phenomenon of the lamp light source. If the current is too high, the lamp beads will be turned on and off. Serious phenomena will burn off the gold or copper wires built in the lamp beads, resulting in the lamp beads will not turn on.
2. Maybe the driving power is broken, so long as another good driving power is replaced, it will not flash.
3. If the driver has the function of temperature protection, and the material heat dissipation performance of the lamps can not meet the requirements, there will be a flash when the driver overtemperature protection starts to work. For example, the 20W projector shell is used to assemble 30W lamps, if the heat dissipation work is not done well, it will be so.
4. If the outdoor lamps also turn on and off, it is that the lamps enter the water. The consequence is that the flash will not shine. The lamp beads and the driver are broken. If the water-proof driver is good, it is just to break the lamp beads and change the light source.