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
16. power consumption operation
How much power the device consumes when it's switched on.
JVC DLA-X30: 0.8W
17. 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
18. 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
19. USB ports
With more USB ports, you are able to connect more devices.
Optoma EH501: 4
20. has a HDMI output
Devices with a HDMI or mini HDMI port can transfer high definition video and audio to a display.
83% have it
21. 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
22. 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.