Feature: 1. Has a service life of more than 10,000 hours, and the LED emits uniform light. 2. High‑accuracy CNC machine tool cutting technology, one‑piece metal shell has high structural strength, drop resistance and environmental protection. 3. Fire‑resistant wire, enhanced conductivity, high temperature resistance, with flame‑retardant base, it can be flame‑retardant in emergency. 4. With good performance, built‑in waterproof sealing ring, waterproof and dustproof. 5. Common anode electrode means 2 color indicator lights share a common anode electrode. Specification: Item Type: Pre-Wired Round LEDs Material: Brass chrome plated Uses: Computer modification, access control switches, CNC machine tools, industrial control instruments Installation Size: M8 x 0.75 Voltage: 3-6V Function: Common Anode electrode Light Source Type: LED Working Temperature: -40℃~70℃/-40℉~158℉ Working Humidity: 10%-90% Shade Type: Flat head Protection Level: IP67, IK10 Size: Approx. 8mm / 0.3in Features: Common Anode Electrode Means: 2 color indicator lights share a common anode electrode After selecting the common anode electrode, the black line is the common anode electrode, the red line is the red light (negative), the green line is the green light (negative), red and yellow, red and blue are the same.. Package List: 4 x LED Indicator4 x Compression Nut4 x Washer