The Hitachi LP-WU3500 is a bright projector with a super high resolution. It has WUXGA resolution which is higher than 1080p Full HD so it will give you brilliant clarity throughout the day. The bright 3500 lumens will be bright enough for an audience of around 150 people. You will not have to turn the lights off as it will be bright enough to project even with the lights on.
The high contrast ratio will add to your enjoyment of viewing. This will bring out the blacks from the whites and give you added depth. There will be no need to change the lamp as it has a long light source of 20,000 hours! By that time you will probably be ready to buy a new machine! It has 360 degree installation which means you can install it in a vertical position. The LP-WU3500 features a dust resistant structure to the optical engine which prevents dust being able to interfere with interior parts, providing you with approximately 20,000 hours maintenance free operation and allows the projector to be used in a wide range of environments.
This machine is suitable for medical use as it has DICOM simulation mode which is great for viewing X-Rays. If you want to view two different images from two different sources next to each other, you can use the Picture By Picture mode. You can connect your sources by using the HDMI and the VGA inputs. There is no need to unplug one if you wish to view one at a time, simply use the remote control to switch between sources which saves a lot of time. The Picture In Picture mode enables you to display one image inside another image using two sources including 2 HDMI.
Overall, this is a great machine and at a great price too for the high resolution