Built-in pir motion sensor. Auto switch on/off when people approach/leave. -compact size and attractive shape -quick start and energy-saving -illuminance threshold and time delay adjustable by turning the knob. -low standby power consumption -ultra long life and more on-off times -light weight For more details, please check the parameters below. We also do oem/odm. Please let us know your requirements. We have the leading lighting fixture factory and experienced engineres to give the best solutions. -- Size: 60(d)mmx110mm Power:4w Lamp base: e27 b22 Life: 30, 000hrs Time delay: 10s-5min Sensor distance: 6m-8m Votage: 220v Note: the illuminance, the delay time and the rating load can be customized upon user¡¡¡¡§o¡¡§¡§s requests.