Fluorescent and LED lights are staples in many classrooms and offices, but their harsh glare and flickering light can cause eyestrain, headaches, and anxiety. Cover your lights with these fabric panels and create a calm and soothing environment perfect for focusing and concentrating! Calming Clouds Light Filters attach easily over standard ceiling fixtures with six sturdy, sewn-in magnets. Each set includes four 2' x 4' heat-resistant panels with four different cloud patterns in soothing shades of blue and soft white. For use with fluorescent and LED lights only.