This is a microwave sensor switches controlled fluorescent light IP20. Automatically turn on and ... (sitting room, bedroom, study,corridor, etc), function of advanced internal microwave sensors try productshumanized control.The microwave sensors is according ... 1. Non-contact detection, 2. Suitable for badenvironment, immune to temperature, humidity, noise, air, dust, light…3.RFinterference ability, 4. ...