Product Description SCHNEIDER MECHANICAL DOORBELL - AC 220-240V , 50Hz - White colour - Mechanical Ding Dong. - Wiring Device only. RETOUCH ULTRA RIMLESS BELL SWITCH - Color: White / Matte Grey / Texture Gold - Size of Surface: W86mm x H90mm - Terminal Screw, Torque: 4.0mm, 1.33Nm - Type Of Conductor: Rigid Stranded - Surface Cover: Polycarbonate - Contact Point: 16A silver cadmium oxid alloy - Base Steel coated with insulating - Auto Looping Yes - Current: 16A - Voltage: 250V