Halo LZR316L 5" Tall Gimbal Ring Track Head for Halo and Lazer-by-Halo Track Systems Features 338° horizontal rotation and 0° to 90° vertical pivot For use with Halo and Lazer-by-Halo track lighting systems Quick-lock adapter attaches anywhere along the track channel Steel and polycarbonate construction (1) 50 watt GU-10 bulb required Covered under a 1 year manufacturer warranty Dimensions Height: 5-1/4" Width: 2-1/16" Depth: 2-7/8" Product Weight: 0.575 lbs Electrical Specifications Max Wattage: 50 watts Number of Bulbs: 1 Bulb Base: GU-10 Bulb Included: No White