This Evolve Matt Grey trailing edge double dimmer switch from British General allows you to control your light levels and set the mood. The intelligent electronic circuit monitors the connected load and provides a soft-start with protection against thermal, current and voltage overload, and is suitable for dimming LED, dimmable CFL's and traditional lighting. This switch has a low profile screwless front plate that clips on and off, making it ideal for modern interiors. It features a smart, flat design with modern sensibilities and is part of the BG Evolve range. The screwless front plate can be easily clipped on and off without affecting the base. It has an expressive palette of colourways for unique home styling. The trailing (lagging) edge is suitable for dimming LED, dimmable CFLs and traditional lights, ensuring smooth operation with no buzzing. The soft-start brings the lights to a set level quickly, extending the lifespan of bulbs. Overload protection prevents failure; if connected to too many lights or transformers, it will turn the lights down or off until the load is corrected. Terminals are clearly marked for easy installation. BG Electrical offers a 25-year manufacturer's warranty against faulty materials and workmanship.