The wide metal shade of the Emmett LED Desk Lamp has an acrylic shield that protects the 3 LED patchboards. The shade is 1-inch height with a 1.5 inch width and a 3 inch depth. It adjusts from 13 inch to 19 inch height and 9 to 19 inches in depth atop a 5.5 inch square base. An updated version of the classic banker's lamp. The benefits of full-spectrum lighting are cleaner, glare-free light, brighter lumen output and no hazardous material,(i.e., mercury). The Emmett LED Desk Lamp features a full-range rotary dimmer switch on the base. CRI: 90; Color Temp: 3000K; 600 Lumens. The lamp body is brushed steel and the power cord is black. The LED lights are integrated into the lamp and are not replaceable, but last 50,000 hours.