SIGNS OF BAD PROJECTOR LAMP EPSON - AN OVERVIEW

What does this necessarily mean? End users ought to optimize the projector's placement if at all possible to reduce the level of zoom essential and keep brightness. So mount as close as you possibly can?Will it signify that lamp projectors are for lifetime and laser projectors are for a decade close to ?Dangbei, XGIMI, Anker, Vava – what do these