Feature: 1. LED indicator light have uniform luminescence, more than 10,000 hours of life 2. High-accuracy CNC machine tool cutting technology, the integrally formed metal shell has high structural strength, fall-proof, anti-collision, and is more environmentally friendly 3. The product has built‑in waterproof sealing washer, waterproof and dustproof 4. Flame-retardant base, high temperature resistance, flame-retardant in emergency situations, fire-resistant wire with enhanced conductivity 5. Common anode (black wire positive) means two color indicators share one positive, very practical Specification: Item Type: LED Indicator Light Material: Brass chrome plated Uses: Car modification, equipment, computer modification, access control switches, CNC machine tools, industrial control instruments Installation Size: M8x0.75mm Voltage: 12-24V Function: Common anode(common positive) Light Source Type: LED Working Temperature: -40℃~70℃/-40℉~158℉ Working Humidity: 10%-90% Shade Type: Flat head Protection Level: IP67, IK10 Features: Common Anode(black wire positive) Means: Two color indicators share one positive After selecting the common anode, the black line is the positive electrode of the common anode, the red line is the red light (negative), and the green line is the green light (negative). Red and yellow, red and blue are the same.. Package List: 4 x LED Indicator Light4 x Compression Nut4 x Washer