Features IP67 IK10 Durable Design: The Pre-Wired Round LEDs is waterproof and dustproof, builtin waterproof sealing ring, very practical. With a service life of more than 10,000 hours, uniform light emission and good performance. Practical Tool: Common cathod electrode means 2 color indicator lights share a negative electrode. Accurate CNC machine tool cutting technology, onepiece metal shell has high structural strength, resistance to fall and collision. Excellent Performance: The pre‑wired round leds adopt hightemperature flameretardant base and fireretardant wire, which can be flameretardant in emergency, and the conductivity is strengthened. Product Brief: 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. Application: You will get 4 x LED Indicator, 4 x Compression Nut, 4 x Washer, suitable for Car modification, computer modification, access control switches, CNC machine tools, industrial control instruments. Specification: 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: M10 x 0.75 Voltage: 110-220V 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. 10mm / 0.4in Features: 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 Indicator 4 x Compression Nut 4 x Washer Package List 4 x LED Indicator 4 x Compression Nut 4 x Washer