Create a calming and pleasant atmosphere with filters designed to reduce the flicker and glare of fluorescent lights. Heat-resistant fabric filters attach to standard ceiling light fixtures with six sturdy built-in magnets. Use these light filters to lessen the brightness of fluorescent lights in the classroom, library, or office. For use with fluorescent and LED lights. Light filters improve concentration levels, reduce tension and anxiety and promote positive performance. 4 2' x 2' light panels per set.