Rustic State Adjustable Wall Reading Task Multi-Purpose Lamp Swing Arm Scissor Extendable Accordion Type White Lamp measures approximately 13 inches retracted to 29 inches extended with a height of about 7 inches. Shade diameter is 7 You can angle up and down the shade, the scissor arm swings left and right and also smoothly retracts and extends away from the wall where you need it for reading or working. Two points of motion allow the arm to extend away from the wall and tuck back in and then pivot the cone housing to direct the light beam. 60 cord has on/off switch on it for your convenience. 40 Watt bulb recommended