Feature: 1. This waterproof LED emits uniform light and has a life span of more than 10,000 hours. 2. High‑accuracy CNC machine tool cutting technology, the integrally formed metal shell has a higher structural strength, and is more environmentally friendly. 3. The product has built‑in waterproof sealing ring, waterproof and dustproof. 4. Flame‑retardant base, high temperature resistance, flame‑retardant in emergency situations, fire‑resistant wire, enhanced conductivity. 5. Common cathod electrode means 2 color indicator lights share a negative electrode. Specification: Item Type: Pre-Wired Round LEDsMaterial: Brass chrome plated Uses: Car modification, computer modification, access control switches, CNC machine tools, industrial control instruments Installation Size: M10 x 0.75 Voltage: 12-24V 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, IK10Size: Approx. 10mm / 0.4inFeatures: Common Cathod Electrode Means: 2 color indicator lights share a negative electrode After selecting the common cathod electrode, the black line is the common negative 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 Indicator4 x Compression Nut4 x Washer