Tech Lighting 700MOSRT30E Monorail Surface Transformer-300W El By Visual ComfortTech Lighting 700MOSRT30E Monorail Surface Transformer 300W El By Visual Comfort This single feed surface transformer converts standard 120 line voltage to 12V DC to provide the necessary voltage for powering a MonoRail low voltage lighting system. Additional Product Information It can power lamps totaling up to 300 watts. The transformer is concealed inside a decorative housing with a single integral power feed and fast acting secondary short circuit