An appliance that turns the controlled output circuit on or off when the input amount (such as voltage, current, temperature, etc.) reaches a specified value. Can be divided into electrical quantities (such as current, voltage, frequency, power, etc.) relays and non-electrical (such as temperature, pressure, speed, etc.) relay two major categories. It has the advantages of fast action, stable operation, long service life and small volume. Widely used in power protection, automation, motion, remote control, measurement and communication devices. Solar Powered Fan,mini solar fan,solar panel for fan and light,solar energy fan JIANGMEN ESCLIGHTING TECHNOLOGY LIMITED , https://www.windfansummer.com
Power direction relay