Knightsbridge SF4000BN Switch 3 Gang 2 Way 10 Amp Black NickelIdeal for controlling 3 separate lights. 2 way switches are generally used when there are two switches controlling the lights. A typical example of this is when a room has two entrances (like a through lounge) where there is a switch positioned at either entrance. Made from high quality ultra slim, premium grade material. Complete with integral gasket.