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.

A button switch for home lighting often has an indicator light on it. The resistance of this type of indicator light is extremely high, causing the current in the circuit to be extremely low, resulting in the voltage of the electrical appliance not reaching the rated voltage at night and not being able to light up. Generally, this type of indicator light has a capacitor inside because a small indicator light cannot accommodate a voltage of 220V.