Pro'sKit MA-1209LA LED Table Clamp Magnifier Lamp, 110V Comes with 84 SMD LEDs which provide 900 lumens lighting and only 2-18W power consumption The LEDs last up to 100,000 hours, which is 20 times longer than incandescent lifetime There are 3 different levels of illumination to adjust for your particular needs 3D (1.75X) glass lens, 6.9 x 5.1" Sturdy clamp attaches quickly to desk or table up to 2.5" thick