The reason why the single-color high-power LED lamp beads burn out:

01. The upper and lower filaments are called gold wires in our industry. Pure gold is used for conducting electricity. There are two positive electrodes and two negative electrodes. A really good product will have a fifth wire, which is welded to the Zener tube. protective.
02. When the filament 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 the 1W single-color high-power led lamp bead 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 three 1W lamps are driven by about 12V, and few of them are directly used at 220V. Do you want to see if there is a lack of a constant current source or a 12V driving power supply?