Reasons why high-power led lamp beads burn out:

01. There are two filaments on the top and bottom of the high-power LED lamp beads, which are called gold wires in our industry. Pure gold is used for conducting electricity. There are two positive electrodes and two negative electrodes. Really good products will have a fifth wire, which is welded to the Zener. It's on, it's protective.

02. When the filament of the high-power led lamp bead becomes shorter, it will clearly tell you that your lamp has been burned by a large current, which is equivalent to an open circuit.

03. The driving current of high-power 1W is about 350ma, and the working voltage is between 3.2-3.6V. Please pay attention when using it. Excessive current will definitely burn the lamp.

04. Generally, the aluminum substrates of the three 1W lamps are driven by about 12V, and few of them are directly used at 220V. Do you want to see if a constant current source or a 12V driving power supply is missing?