How much power the device consumes when it's switched on.
JVC DLA-X30: 0.8W
16. has manual focus
This allows to manually set the focus.
71% have it
17. displays 3D
The device can display 3D images without the need for wearing special glasses. The display's special construction allows viewers to get a sense of an image's depth by tailoring its position to fit the user's perspective.
20% have it
18. composite ports
The more composite ports a device has, the more devices can be simultaneously connected, such as video game consoles and set-top boxes.
NEC NC1200C: 4
19. USB ports
With more USB ports, you are able to connect more devices.
Optoma EH501: 4
20. refresh rate
The frequency at which the screen is refreshed. Higher frequency results in less flickering (less noise) and more natural movement representation in action-intense scenes.
Panasonic PT-AE7000U: 480Hz
21. lamp life
This shows the lifespan of the light source. Beamers need to have their lamps (light source) replaced every now and then.