2 in 1: You can separate this light sheet, or use an adjustable C-clamp to clamp it on any vertical or horizontal surface, with a maximum width of 2 inches. Suitable for schools, dormitories, offices, bedrooms and other places^ Flexibility: Illuminate a large area and move its position through a flexible spring balance adjustment arm that can be extended to 18" and a rotatable base and lampshade^ High quality: Because the base is heavier, the lamp can stand steadily. The rocker arm and lampshade are made of solid metal with a black finish, making it durable and beautiful.^ User-friendly: Its slim profile and 51-inch power cord means you can place it anywhere without taking up too much space, and the easy-to-use on/off rocker switch ensures daily use^ The bulb has been replaced: Suitable for bulbs up to 40W, and both E26 and E27 bases can be used.