The Ultimate screwless flat plate range from Schneider Electric offers modern, contemporary design and is engineered to make installation easier, quicker and safer. When decorating the screwless front plate can be 'popped' off via the easy-release slot located on the side, and then simply clipped back into place, resulting in a clean professional appearance to your home or office environment; access to live parts is restricted even with the front plate removed ensuring convenience and safety throughout. 2-way functionality allows 2 separate switches to operate the same light fitting, typically at the top and bottom of a stairway or at opposite ends of a corridor. Product features two individual dimmers with push on/off and rotate-to-dim functionality. Schneider Electric Ultimate rotary dimmers are extremely Energy Efficient and can help save up to 30% on energy cost. Product conforms to BS EN 60669-2-1. Complete with both M3.5 X 25mm and M3.5 x 30mm fixing screws for maximum flexibility during installation.