The indicator lights are available in five colors: red, yellow, green, blue, and white. They use AC and DC general-purpose LED lamp beads. There is no distinction between positive and negative poles in the wiring terminals. The lamp beads have built-in protection resistors and no external connection is required. The luminous intensity of the 14mm indicator will reduce the low operating current. If you are interested in our products and are interested in cooperating with us, please contact us firstname.lastname@example.org.