More audio input ports mean that more audio devices such as microphones and keyboards can be connected at once.
BenQ LW61ST: 4
16. power consumption operation
How much power the device consumes when it's switched on.
JVC DLA-X30: 0.8W
17. power consumption on standby
How much power the device consumes when shut down but still plugged in.
Panasonic PT-AE8000U: 0.08W
18. USB ports
With more USB ports, you are able to connect more devices.
Optoma UHD51A: 4
19. 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
20. contrast ratio
Contrast ratio is the visual distance between the lightest and the darkest colors that may be reproduced on the display. A high contrast ratio is desired, resulting in richer dark colors and more distinctive color gradation.
Epson PowerLite Pro Cinema 6030UB: 600000:1
21. lamp life
This shows the lifespan of the light source. Beamers need to have their lamps (light source) replaced every now and then.
Vivitek Qumi Q7: 30000h
22. has manual focus
This allows to manually set the focus.
71% have it
23. component ports
The more component ports a device has, the more devices can be simultaneously connected, such as video game consoles and set-top boxes.
BenQ MS504: 6
24. HDMI ports
More HDMI ports mean that you can simultaneously connect numerous devices, such as video game consoles and set-top boxes.
Panasonic PT-AE8000U: 3
25. 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.