ShadeMAGIC Fluorescent Light Covers for Classroom Office - Light Filter Pack of (4); Eliminate Harsh Glare That Causing Eyestrain and Head Strain. Office & Classroom Decorations. Light Diffusers (4) Cloud 4 PACK is up for auction in Office Products. The current bid is $2.00, 93% below the $26.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.