Some days ago, I found a second-hand projector in selling on a local website. By the sake of its cheap price and good performance, I bought it home. I had still used  a home theater type projector before now, its model was Sanyo PLV-Z5, the new model is Sany PLC-XU2010C, use for office or primary-usage of home. We attempted  to use the new one, depending on it's 2500 lumins high light, we can use it in a bright room or let the window open while the olds could just use in a whole dark room. But in the other hand, the new one can't  display the accurate details of pictures because of its low contrast, especially in a whole not bright scene. Just one day later, we took back the old one Z5.