Dont let that blockbuster movie or championship game come to an untimely end due to a burnt-out projector lamp! This 200W replacement lamp is identical to the original lamp in your Screen Play 4805. Keeping a spare lamp on hand will put an end to worries about an untimely burn-out. In fact, many front-projector veterans recommend using your projectors original lamp for its warranty period (typically 90 days), then purchasing & installing a replacement lamp, while keeping the original as your backup (since youve already put some hours on it, you know it works).