COMPLETE VOLTAGE – Industrial quality LED light signal that gives a visual indication of system status at a glance. Available with a voltage of 12V, 24V and 110/120V. Package includes 2 green, 2 yellow and 2 red bulbs SMALL SIZE – Versatile and useful for different kinds of industrial installations. Can be used in mount panels, machines and consoles of textile equipment and operating rooms or distribution boxes for ships, airplanes or cities LONG LIFE – A dustproof base makes sure you don't have to worry about installation in a dusty environment. Industrial quality components contribute to a product that lasts longer, saving you money in the long term. APPLICATION – Versatile and useful for different kinds of industrial installations. It can be used as signal indication, warning signal, pilot light, accident signal and other signals in the line of electric power, telecommunication, machine tool, mount panels, consoles of textile equipment and operating rooms, ships, airplane, printing and mining machinery . OTHER SPECIFICATIONS – Model No: AD16-22D. Mounting hole size: 22 mm (7/8 in). Voltage: 12V, 24V or 110/120V. Current: 20mA. Size: 50 x 30 mm / 2 x 1.2 in (Length x Diameter)