Item Type: Pre-Wired Round LEDs Material: Brass chrome plated Uses: Car modification, computer modification, access control switches, CNC machine tools, industrial control instruments Installation Size: M8 x 0.75 Voltage: 3-6V Function: Common cathod 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 cathod Electrode Means: 2 color indicator lights share a common cathod electrode After selecting the common cathod electrode, the black line is the common cathod electrode, the red line is the red light (positive), the green line is the green light (positive), red and yellow, red and blue are the same. Package List 4 x LED Indicator 4 x Compression Nut 4 x Washer 1The lamp emits uniformly, with a service life of more than 10,000 hours, which is very practical. 2The onepiece metal shell adopts highaccuracy CNC machine cutting technology, has high structural strength, and is resistant to falling and collision. 3High temperature resistant flameretardant base, flame retardant in emergency situations, fireresistant wire enhances conductivity. 4The product has built-in waterproof sealing ring, waterproof and dustproof. 5Common cathod electrode means 2 color indicator lights share a common cathod electrode.