The Fluorescent Light Covers in Blue with a Starry Sky shade are designed for classrooms, offices, living rooms, bedrooms, libraries, and hospitals. These rectangular covers are 4 x 2 feet in size and have a GX53 bulb base. The covers are made of fabric and have a matte finish. They are installed by surface mounting and have a special feature for eye comfort. The covers are solar powered and have a limited warranty. Perfect for creating a calming and focused environment in various indoor spaces.