Product_description: ['100 Watt surface transformer mounts to a standard 4" square junction box with round plaster ring (provided by electrician). Rail drops 3.5" from the ceiling. Includes five classic Focus heads (20 Watts max each) that rotate 360° around stem and pivot 270°. The kit may be dimmed with a standard incandescent dimmer.', 'Five-Light Rail Kit with Focus Heads Combining a fresh matte nickel finish and modern focus fixture heads, this rail kit is the perfect choice for updating tired decor. It is easy to install and comes complete with everything you need. Each rail section is bendable, allowing you to reach out from your electrical junction box in any direction. The fixture heads may be placed anywhere on the rail and pivot vertically and horizontally. Each kit includes five fixture heads, five 20-watt MR16 bulbs, three 36-inch bendable rail sections, one power feed with integrated 12 volt transformer, two rail connectors, two end caps and three 3-inch rigid standoffs. May be dimmed with a standard incandescent dimmer. Takes (5) 20-watt halogen MR-16 bulb(s). Bulb(s) sold separately. Dry location rated. UL listed. 8 in x 108 in. Tech Lighting 5-Light Rail Kit w/ Focus Heads - Cast Aluminum Track Lighting