... environment, immune to temperature,humidity, noise, air, dust, light…3.RF interference ability, 4. Transmission power only 0.2 mW,It ... , it also can be installed in thebathroom.The built-in microwave sensor switch can penetrate plastic, glass, wood . So it can ... glass or plastic shell lamp This allows the application of microwave sensor switch in differentstyles of lights for energy control. Now ...