■Features: Soft and gentle design. This 21st century life partner is designed to be both humans and the planet with its ability to operate and energy-saving design. The delay switch is useful for gate lighting, entrance lighting, toilet, bathroom, and ventilation fans. The indicator light will turn green when the guide switch is OFF, so you can check the position of the switch even in dark places. Check switch (ON) indicates that the indicator light illuminates red, so you can check the operation of pouch lights and ventilation fans. This product requires installation by an electrician. General consumers who do not qualify for installation and replacement work is not legal Manufacturer: JIMBO / Shinjo Electrician, Series Name: J and WIDE Series Wiring Fixture, Compatible with Operation Board JISC8304 (Small Switches for Indoor Use)