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: M12 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. 12mm / 0.5in Features: Common Anode Electrode Means: 2 color indicator lights share a common positive 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 Indicator 4 x Compression Nut 4 x Washer 1Uniform luminescence, more than 10,000 hours of service life, very practical. 2Shatter-resistant, impact-resistant and environmentally friendly, high-accuracy CNC machine cutting technology and one-piece metal shell 3Common anode electrode means 2 color indicator lights share a positive electrode. 4Fireproof wire, enhanced conductivity, high temperature resistant flame retardant base, flame retardant in emergency. 5The product has builtin waterproof sealing ring, waterproof and dustproof.