Constructed from a tough and durable polycarbonate, tested and certified to appropriate British Standards, the 1 Gang 1 Way 20A bell switch with neon indicator is ideal for outdoor applications.This single bell switch is designed specifically for use in an outdoor environment, or one in which the protection provided by the IP66 range is required, such as outdoor lighting, outdoor heating or where wiring accessories may be exposed to the potentially harmful effects of dust or water.The 20A single bell switch features multiple easy to remove 20mm cable entry knockouts. The 20mm cable entry knockouts can be easily removed by pushing out from the inside of the back box.