Durable: Die cast aluminum construction manufactured to be durable and last long. Includes all mounting hardware. Every piece of WAC track comes with two end caps. These track end caps are available when field shortening a longer piece of track, or if extra end caps are needed for any reason. WAC H-L-J-J2 track systems can be used with WAC and a variety of other manufacturer's track systems. Please order your track, components and fixtures according to your system's compatibility. WAC track is fully dimmable. Single Circuit 120V track, power per Circuit: 120V, 1920W max per circuit, Operating Current: Rated 20A max. Compatible with H track systems by WAC Lighting. Also compatible with H systems from other leading lighting manufacturers. Standards: UL & cUL Listed for Dry Locations. Track lighting systems are open conductors and intended for indoor use only.