When looking at the new models of 4K projectors it’s important to look at the type of bulbs they use. Some 4K bulbs are more expensive than others. This is important to remember as you will be replacing them after around 500 hours of use.
In most home theaters this is a couple years of use, but obviously that depends on the amount of use the room gets. Sony’s 4K projector bulbs can get pretty expensive but are widely regarded as some of the best in the industry. If you want the ultimate in performance then you have to look no further.