Height: 1 1/2"
Width: 18" 
Backplate: 4 3/4" h x 3/4" w
Extension: 9" - 12" Adjustable
Shade: 1 1/2" h x 18" w
Wattage: 2 - 25 Watt Type T
Socket: Keyless With Switch 12" from Arm

Note: This item cannot be hard-wired.