O9-TECH Square Base Unique Work Folding Rotating Eye-protection Dimmable LED Desk Lamp with Color Temp Changable,use in Study or Office Hotel 'S LED Touch Desk Lamp-Blue * Eye protection and Comfortable appearance design ,so it is widely used in study or office, hotel. * Special L shape structure, operate smoothly. * Comfortable appearance and Eye protection design . * Left /Right adjustable, can meet 180 deg different angle lighting requirement. * Buttoned switch and touch switch function. it has five brightness grades can be chose.