How much power the device consumes when shut down but still plugged in.
Panasonic PT-AE8000U: 0.08W
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. 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
19. has a HDMI output
Devices with a HDMI or mini HDMI port can transfer high definition video and audio to a display.