The three-phase power indicator light is specifically designed for real-time monitoring of electrical equipment such as cranes and cranes. It can effectively avoid adverse consequences caused by phase loss or other power failure of electrical equipment. It is currently an ideal replacement product for sliding contact line electric light indicator. This product uses imported ultra-high brightness LED tubes to form four types of luminescent plates: red, green, yellow, and blue. Observable distance greater than 100 meters. The shell adopts processes such as steel plate and electrostatic spraying, which have functions such as waterproof and shockproof. The lamp body can rotate 180 º during installation. Can be installed indoors or outdoors.

The rated working voltage of the indicator light is 220110, 48, 36, 24, 12, 6, 3 V, etc. Due to the limitation of the current level in the control circuit, and in order to extend the service life of the bulb, it is often adopted to add a current limiting resistor in front of the bulb or use two bulbs in series to reduce the working voltage.