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2. Acer K222HQL 21.5 inch Full HD Monitor
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4. BenQ GW2280 21.5 inch Full HD Monitor
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6. Dell D1918H 18.5 inch HD Monitor
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General

Model Name	K222HQL	GW2280	D1918H
Color	Black	Black	Black
Display	54.61 cm (21.5 inch) LED Backlit Display	54.61 cm (21.5 inch) LED Backlit Display	46.99 cm (18.5 inch) LED Backlit Display
Backlight		LED Backlit Backlight	LED Backlit Backlight
Panel Type	TN Panel	VA Panel	TN Panel
Resolution	1920 x 1080 pixels	1920 x 1080 pixels	1366 x 768 pixels
Screen Resolution Type	Full HD	Full HD	HD
Sales Package	1 Monitor, Power Adapter, VGA Cable	Monitor, Power Chord, User Manual, Warranty Documents	Monitor, Stand, Power Cable, HDMI Cable, VGA Cable, Drivers and Documentation Media, Quick Set-Up Guide, Safety and Regulatory InformationView More...
Screen Form Factor	Flat	Flat	Flat
3D	No	No	No

Display Features

Number of Colors	16.7 M Colors	16.7 M Colors	16.7 M Colors
Aspect Ratio	16:9	16:9	16:9
Contrast Ratio	100000000:1	3000:1, 20000000:1 (Dynamic)	600:1
Horizontal Viewing Angle	90° (2D)	178° (2D)	90° (2D)
Vertical Viewing Angle	65° (2D)	178° (2D)	65° (2D)
Response Time	5 ms	5 ms	5 ms
Brightness	200 nits (2D)	250 nits (2D)	200 nits (2D)
Other Display Features	Maximum Resolution and Refresh Rate: 1920 x 1080 at 75 Hz, Bits: 6-bit and Hi-FRCView More...	Flicker Free Backlight, Low Blue Light Mode, Brightness Intelligence TechnologyView More...	Active Display Area (H x V): 409.8 x 230.4 mm
HD Standard		1080p
Pixel Pitch			0.30 mm
Display Screen Coating			Antiglare
Color Gamut		72%	0.72%

Audio Features

Speakers	No, 2 Speakers with 2 W	Yes, 2 Speakers with 1 W
Inbuilt Speaker	No	Yes
Number of Speakers	2	2
Headphone Jack		Yes
Microphone Jack		Yes

Connectivity

VGA	Yes	Yes	Yes
Other Connectivity Features	Input Signal: VGA	D-Sub
HDMI		Yes, 2 x HDMI v1.4 Port	Yes, 1 x HDMI 1.4 Port
Display Port		Yes
Audio In		Yes

Additional Features

HDCP Support		Yes
Other Features	Full HD LED Monitor, ComfyView, Acer Adaptive Contrast Management, Acer Eco-displayView More...	Edge to Edge Slim Bezel Design	Flicker-freescreen and ComfortView (TUV Certified Low Blue Light), Energy Star (Version 7.0), Shipping Weight: 3.1 kgView More...
OSD Languages Supported		18 Languages
Plug and Play		Yes
System Requirements		Windows 7, Windows 8, Windows 10

Warranty

Warranty Summary	3 Years Warranty	1 Year Limited Warranty	3 Years Onsite Warranty
Covered in Warranty	Manufacturing Defects	Manufacturing Defects	Manufacturing Defects Only
Not Covered in Warranty	Physical Damages	Physical Damage	Physical Damage

Power Features

Power Output Per Speaker	2	1
Other Power Features	Power Supply: Internal Adapter
Power Requirement		AC 100 - 240 V, 50/60 Hz	AC 100 to 240 V, 60 Hz
Power Consumption		25 W (Operational)	13 W (Operational), 0.35 W (Standby)

Mounting Features

Stand Tilt	-5 to 25	-3 Degree to 20 Degree	-5 Degree to 15 Degree
Wall Mounting	100 x 100 mm	100 x 100 mm
Wall Mount Standard		VESA Mount	VESA 75 mm
Security Lock Slot		Yes
Stand		Tilt

Touchscreen Features

Touchscreen Support

No