The Monorail 12V Circle Kit 600W Surface Dual Feed Magnetic by Edge Lighting Pre-Bent Monorail 12 Volt Circle Kit with 600 Watt Dual Feed Surface Mount Transformer is available in a 24, 36, 48, 60, 72, 84, 96, 108 and 120 inch diameter. Finish in Satin Nickel, Antique Bronze or Polished Nickel. Kit includes a 600 watt dual feed 12 volt surface mount magnetic transformer, circle of pre-bent Monorail, 1 inch standoffs for every three feet of rail, and isolating connectors. Maximum 300 watt load per feed for 12 volt dual feed system. Dimmable with a 1000 watt low voltage magnetic dimmer, sold separately. Fast Jack 12 volt pendants and heads available, sold separately.