Monorail 2 Circuit kit includes everything you need for a complete system - just add fixtures. Kit includes remote 4X300 watt 12 volt dual feed magnetic transformer and 4" round dual feed canopy, hand-bendable monorail 2 Circuit, 1 inch standoffs (1 per each 3 ft of rail) and 2 pairs of end caps. Available lengths of monorail: 4, 8, 12, 16, 20, 24, 28, 32, 40, 48, 52 or 60 feet. Available in satin nickel, polished nickel or antique bronze finish. Just add heads or pendants to complete a system. Total wattage of used fixures cannot exceed 1200 (4x300) watts. Monorail 2 Circuit LED is not dimmable.