The Varilight Screwless low profile collection offers minimalism with style and a flawless finish. The plate just clips on after installation. Each switch does need to be earthed and is designed to fit into UK standard wall boxes. Single plate size: 86mm x 86mm. Double plate size: 86mm x 147mm. 13A Plug sockets: Require a 35mm deep wall box. USBÕs are 2.1A. Rocker and Toggle Light Switches: 2 way (unless stated as intermediate), 10A rated and require a 25mm deep wall box. Halogen and LED Dimmers: 2 Way. Please check product title for dimmer spec and maximum and minimum load. Require a 35mm wall box. 5 Amp Socket: Require a 35mm deep wall box. Shaver Socket: Require a 47mm deep wall box. Dual Voltage Shaver Socket 240V/115V. Suitable for use in bathrooms, toilets and shower rooms (IP41). Cooker Switch: Require a 35mm deep wall box. 45 Amp Double pole. Fused Spur: Require a 35mm deep wall box. 13 Amp Double pole. TV Socket: Require a 25mm deep wall box. 20 Amp: Require a 25mm deep wall box. Fan Isolator: Require a 35mm deep wall box. 10A Fan Isolating Switch (3 Pole). DataGrid Plates: Clip in any combination of DataGrid modules (need to be bought from us separately). Compatible with all standard Euro data modules (Varilight, Triax, RetroTouch etc). Create your own data combinations. Touch/Remote LED Dimmers: V-Pro IR (infra-red) Dimmers. 0-100W (1-10 LEDs). Require a 35mm deep wall box. V-Pro intelligent dimming technology. Touch control or remote control from dedicated handset (not included, Varilight YRC8 can be bought separately), or can use a spare button on an existing handset (e.g. TV remote). 1-way or multi-way when used with V-Pro IR dimming unit(s). Soft start feature and intelligent overload protection. Touch s: Can not be used on their own, must be used with a master dimmer to make a 2 way or multi-way circuit. Require a 35mm deep wall box. _13A Socket _1-Gang 13A Double Pole Switched Socket with Metal Rockers