GETTING MY WHY IS MY PROJECTOR SCREEN GETTING DIMMER TO WORK

What does this suggest? Buyers need to improve the projector's placement if possible to reduce the level of zoom needed and keep brightness. So mount as shut as you possibly can?So if fifty% loss at 20k several hours, 25% decline at 10K hours. Have you ever communicated with producer engineers about this and will it differ by manufacture or even de