Track lights and Track + Power Canopy; with mounting hardware. Made from used 24 oz - 25 oz aluminum beer cans. Line voltage. The track light (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, and has more accessories than the other systems. Also, it is 100% compatible with HALO, which makes substituting really easy. Approximate measurements of each track light: 2 3/4" (diameter of the can) x 7-1/2" long. x 6" ( from can to the tip of the swivel arm)". Weight - 10 oz (with the bulb). All electrical components are UL listed. Standard ceramic bulb socket (E26). E26 is compatible with European E27. Made-to-order in approximately 3 + weeks. Black color track and ceiling canopy (as pictured). White color track and canopy (and white swivel arm adapter clips of the track heads) are available. All different beer cans (unless requested otherwise). Brands of the Beer cans, label styles - subject to availability. Orders of 3-4 lights comes with 4 ft. long section of track. Orders of 5-10 lights comes with two joinable sections of track 4 ft. long each. Pictured is 10 light version. Individual track lights; specific beer (can) brands; different number of lights, Track lengths are available - please ask. PAR16 type, 120V, dimmable halogen light bulbs are included. Other type of bulbs can be used: CFL; LED (PAR16 type is recommended). Lights are dimmable with use of dimmable bulbs. For indoor use only. Used Beer cans might have minor dings, scratches and other imperfections.