The Epson H840B projector, also known as the Epson EB-84H, is a 3LCD projector with a native resolution of 1024x768 (XGA) and 2,600 ANSI lumens brightness. It features a 1.6x optical zoom and includes features like wireless connectivity and HDMI input. The projector is designed for conference rooms and other professional settings. 
Here's a more detailed breakdown of its specifications:
Display:
Technology: 3LCD
Resolution: 1024x768 (XGA)
Brightness: 2,600 ANSI Lumens
Contrast Ratio: Not specified in the provided search results
Aspect Ratio: 4:3 
Optical:
Zoom: 1.6x Optical 
Throw Ratio: Not specified in the provided search results
Lens Shift: Not specified in the provided search results. However, the projector does have a unique lens shift feature for positioning flexibility. 
Connectivity:
Wireless: Included (2245U) or optional (2250U)
Miracast/WiDi: Yes (2250U)
HDBT Connectivity: No (2245U), Yes (2250U)
HDMI: 2
iProjection: Yes
Network: Monitor/Control/Presentation 
Other Features:
Speaker: 16W
Lamp Life: 4,000 hours (Normal Mode) / 5,000 hours (Eco Mode)
Keystone Correction: ±30° Horizontal and Vertical
Screen Fit: Yes
Gesture Presenter: Yes
Lamp: 200 Watts