The flat light is broken. What's broken1, the remote control is broken, it is necessary to replace the receiver and handle of the remote control2, LED lamp beads black, most of the lamp beads are broken, it is the patch to change the light board, is the string of lights, can find the string of lights best even the string of lights together to change, can not find the string of lights with new light beads, can also be used, but the lamp beads have positive and negative poles, inserted in the reverse is not bright3, the LED controller or driver is broken, then change the controller or driver on the line.