Coffee can Track light. Line voltage. The track head is a single circuit 3-wire (H) system. Many current projects require or specify a 3-wire system. It is easier to ground, & has more accessories than the other systems. Also, it is 100% compatible with HALO, which makes substituting really easy. Approximate measurements: 7 x 5 x 4 inches. Diameter of the Can is 4 inches. Chrome color swivel arm. Swivel arm plastic adaptor - clip is available in Black (as pictured) or White color. Black color adaptor is for black color track & white is for white track. Made from UL listed electrical components. Standard ceramic bulb socket (E26). E26 is compatible with European E27. If you're outside of the U.S. or Canada, light will be shipped without the bulb & you will need to get 240 Volt light bulb that have an E27 screw base. Made from coffee can (used). Red color. Other colors/ brands available. Possible slight variations from the pictured item. Style / Brand of the Coffee Can is subject to availability. You are welcome to supply your own can(s) for conversion. Made-to-order in approximately 3 weeks. PAR20 or PAR30 (as pictured) 120V halogen flood light bulb (dimmable) included (for U.S. & Canada only). Other types of bulbs can be used: Incandescent, CFL; LED; Incandescent; Halogen. Dimmable (with use of dimmable type bulb). This listing is for ONE track light (one coffee can). Shipping via USPS; UPS; FEDEX. Pictures of completed Light Fixtures in real environments (FB page): https://www.facebook.com/pages/ZAL-Creations/148255511988929 Track Light, Coffee Can, Head