Varilight 10A 3 way Jet black Single Intermediate switch. For your safety, electrical products must be installed in accordance with local building regulations. If in any doubt, or where required by the law, consult a competent person who is registered with an electrical self-certification scheme.. Flat screwless profile intermediate switch with gloss gloss jet black finish and silver insert. 1 gang internal switch, ideal for controlling 1 circuit. 3 way switches make it possible to control the same light from 3 locations. Intermediate switch by Varilight.