WAC Lighting QF-9415-BN/BN Low Voltage Monorail Qc Fixture Kit Includes fixture, shade, socket set, and quick connect adapter for quick install to solo rail Performance: accepts GY635 base Bi-Pin lamp up to 50 watts Standards: UL & CUL listed Additional fixture for solo rail kit LM-K9415 Compatible with any monorail system Smooth and continuous dimming to 10% Lamp sold separately, we recommend jc-50 halogen GY635 lamps Can also be used as a fixture for use with the Solorail Starter Kit WAC Lighting is a responsible lighting company WAC Lighting Corp.