1 gang 1 way doorbell switch this touch switch can directly replace the old doorbell switch in your home, extra neutral line is no need to be wired with. The stand by electrical power can meet less than 0.2W. You can long press the touch button to use it. The completed product consists of a tempered glass panel, a touch module, metal bracket and two mounting screws, which they can be installed together through the metal bracket on the wall by your local electrician. The panel is made of tempered glass which is in 86mm86mm size and 4mm thickness. This size can be used in most of European countries and some Asian countries. The finish is glossy and the edges are chamfered. This makes the glass panel look modern, clean and delicate. It’s damp proof, explosion-proof and scratch-proof. About the touch module. The module shell is made of fire-retardant Polycarbonate material, the outer size is about 50mm50mm and 25mm depth. The PCB Electronic components are made in dustless workshop. Advancing Toshiba brand chips are used in our smart touch wall switches. We do quality check tests for each batch. All the good materials and professional production environments make our TAWOIA brand wall switches and power sockets in good and stable quality. For the working voltage, it is 110V-240V A.C. 50/60Hz, the loading electrical power is 3-800W/gang, 1000W in total. It can work in the environment of temperature from -20℃ to 70℃ and the relative humidity is from 10% to 93%. All touch switches comply with EU CE electrical standards. And we applied CE, RoHS, CB for our smart touch wall switches and power sockets. At the same time, we have patents for the design and technology of our products. All the packaging are in environment friendly way.