WAC Lighting JHT-817-BK J Series Low Voltage Track Head, 50W Die-cast aluminum construction. "L" style yoke and pivoting heads for precise aiming. Each head has independent vertical adjustment 1W minimum load allows the installation of an LED lamp. Available with pre-installed LED MR16 lamp (ht-817led). lamp sold separately on non-led version For use with 120V track. Track Fixture is available in H, j/j2, and L track configurations. Order according to track layout specifications. Accepts MR16 LED or halogen lamp Smooth and continuous dimming to 10% with an electronic low Voltage dimmer 350Deg horizontal rotation and 90Deg vertical tilt. Silicon hot aiming sleeve. Standards: UL & CUL listed for dry locations Die cast aluminum construction 350Degree horizontal rotation and 90Degree vertical tilt Clear lens included, for optimal light control Silicon hot aiming sleeve Black Finish