Progress Lighting P6112-09 120 Volt Line Voltage Slotted Back Cylinder Track Head, Brushed Nickel Brushed Nickel Finish 2-9/16-Inch Width x 5-7/8-Inch Height Uses (1) 50-watt MR-16 (120V GU10) bulb 50-Watt max Progress Lighting has over 5,000 lighting fixtures offered in our catalog, the largest single source for residential and commercial lighting