Constant-voltage LED lamp bead

The utility model provides a constant-voltage LED lamp bead. The constant-voltage LED lamp bead comprises a support, a plurality of flip chips and LED constant-voltage chips, wherein the flip chips are sequentially arranged on the support in series, and the LED constant-voltage chips are connected with the flip chips. The bracket is provided with a positive electrode connecting part, a negative electrode connecting part and a plurality of middle connecting parts arranged between the positive electrode connecting part and the negative electrode connecting part; the first pin of the LED constant-voltage chip is connected to the last middle connecting part, the second pin is connected to the non-last middle connecting part, and the third pin is connected to the negative electrode connecting part. According to the utility model, the plurality of flip chips are arranged on the bracket, so that the power and the brightness of the LED lamp beads can be increased; and the LED constant-voltage chip is arranged, so tha