Features The one-piece metal shell with precise CNC machine tool technology has high structural strength, fall and collision resistance. Use a flame retardant high temperature base and a fire retardant wire that can be flame retardant in an emergency, and the conductivity is reinforced. Common cathode electrode means 2 color indicator lights share a negative electrode. The product is waterproof and dustproof, built-in waterproof sealing ring, very practical. With a lifespan of more than 10,000 hours, uniform light emission and good performance. Features: 1. With a lifespan of more than 10,000 hours, uniform light emission and good performance. 2. The one-piece metal shell with precise CNC machine tool technology has a high structural strength, fall and collision resistance. 3. The product is waterproof and dustproof, built-in waterproof sealing ring, very practical. 4. Adopt a flame retardant high temperature base and a fire retardant wire, which can be flame retardant in an emergency, and the conductivity is reinforced. 5. Common cathode electrode means 2 colour indicator lamps share a negative electrode. <P> Specification: Element type: pre-wired round LEDs Material: chrome-plated brass Use: vehicle modification, computer modification, access control switch, CNC machine tools, industrial control instruments Installation size: M10 x 0.75 Voltage: 110-220V Function: common cathode electrode Light source type: LED Working temperature: -40 ~ 70 ℃/-40 ℉ ~ 158 ℉. Working humidity: 10% -90% < br> Shadow type: flat head. Protection level: IP67, IK10. Size: approx. 10 mm. Features: Common cathode electrode medium: 2 colour indicator lamps divide a negative electrode After selecting the common cathode 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 indicators. 4 x pressure nuts. 4 x washers. Package List 4 x LED Indicator 4 x Compression Nut 4 x Washer