More HDMI ports mean that you can simultaneously connect numerous devices, such as video game consoles and set-top boxes.
Panasonic PT-AE8000U: 3
16. USB ports
With more USB ports, you are able to connect more devices.
Optoma EH501: 4
17. zoom ratio
Projector zoom allows you to increase or decrease the size of the projected image without moving the projector. Bigger zoom ratio provides more flexibility. The most common zoom ratio among today's projectors is 1.2. With a 1.2 zoom ratio you can vary the image size by 20% by simply adjusting the zoom lens.
Epson PowerLite Pro Cinema 6030UB: 2.1:1
18. has manual focus
This allows to manually set the focus.
Epson PowerLite 1261W
71% have it
19. power consumption operation
How much power the device consumes when it's switched on.
JVC DLA-X30: 0.8W
20. power consumption on standby
How much power the device consumes when shut down but still plugged in.
Panasonic PT-AE8000U: 0.08W
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. 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.