NOT KNOWN FACTS ABOUT WHY IS MY PROJECTOR SCREEN GETTING DIMMER

I am James. I’ve been utilizing projectors for many years. I really like seeing videos, Website series, and stuff on youtube. I don’t know, but there is something which has been immersing myself Within this pastime.I use the lamp energy mode and iris once the bulb is “new” to dial it right down to 15ftl. Then, since it ages, I open the iris