Product comparison · 2 monitors

Dahua Technology LM27-A221Y computer monitor vs Dahua Technology LM27-B221 computer monitor

83specifications compared
21differ
62identical
15known for one product only

Key differences

HDMI version
- LM27-A221Y computer monitor:1.4
- LM27-B221 computer monitor:2.0
Panel mounting interface
- LM27-A221Y computer monitor:100 x 100 mm
- LM27-B221 computer monitor:75 x 75 mm
Tilt angle range
- LM27-A221Y computer monitor:-5 - 20°
- LM27-B221 computer monitor:-5 - 15°
Energy efficiency class (SDR)
- LM27-A221Y computer monitor:D
- LM27-B221 computer monitor:E
Energy consumption (SDR) per 1000 hours
- LM27-A221Y computer monitor:14.9 kWh
- LM27-B221 computer monitor:21 kWh
Power consumption (typical)
- LM27-A221Y computer monitor:27.1 W
- LM27-B221 computer monitor:27 W
Power consumption (max)
- LM27-A221Y computer monitor:28 W
- LM27-B221 computer monitor:29 W
Width (with stand)
- LM27-A221Y computer monitor:615.1 mm
- LM27-B221 computer monitor:614.1 mm

Side by side

Differences highlightedShow differences only

Comparison of LM27-A221Y, LM27-B221
98 specifications	A Dahua Technology LM27-A221Y computer monitor Model LM27-A221Y View product	B Dahua Technology LM27-B221 computer monitor Model LM27-B221 View product
Displayidentical
Display diagonal	68.6 cm (27")	68.6 cm (27")
Display resolution	1920 x 1080 pixels	1920 x 1080 pixels
Native aspect ratio	16:9	16:9
Display technology	LED	LED
Touchscreen	No	No
HD type	Full HD	Full HD
Panel type	IPS	IPS
LED backlight	Yes	Yes
Backlight type	Edge LED	Edge LED
Display brightness (typical)	250 cd/m²	250 cd/m²
Response time (MPRT)	1 ms	1 ms
Screen shape	Flat	Flat
Supported graphics resolutions	1920 x 1080 (HD 1080)	1920 x 1080 (HD 1080)
Supported video modes	1080p	1080p
Contrast ratio (typical)	1200:1	1200:1
Maximum refresh rate	144 Hz	144 Hz
Viewing angle, horizontal	178°	178°
Viewing angle, vertical	178°	178°
Display number of coloursKnown for one	Unknown — not stated by the source	16.7 million colours
Pixel pitch	0.3114 x 0.3114 mm	0.3114 x 0.3114 mm
Pixel density	81.59 ppi	81.59 ppi
Viewable size, horizontal	59.8 cm	59.8 cm
Viewable size, vertical	33.6 cm	33.6 cm
Display diagonal (metric)	69 cm	69 cm
Haze rate	25%	25%
Surface hardness	3H	3H
Colour gamut standard	NTSC	NTSC
NTSC coverage (typical)	72%	72%
Colour depthKnown for one	6 bit	Unknown — not stated by the source
Performanceidentical
NVIDIA G-SYNC	No	No
AMD FreeSync	No	No
Low Blue Light technologyKnown for one	Unknown — not stated by the source	Yes
Flicker-free technologyKnown for one	Yes	Unknown — not stated by the source
Multimediaidentical
Built-in speaker(s)	No	No
Built-in camera	No	No
Designidentical
Market positioning	Office	Office
Product colour	Black	Black
Front bezel colourKnown for one	Unknown — not stated by the source	Black
Illuminated stand	No	No
Feet colour	Black	Black
Frameless designKnown for one	No	Unknown — not stated by the source
Housing materialKnown for one	Plastic	Unknown — not stated by the source
Detachable standKnown for one	Yes	Unknown — not stated by the source
Ports & interfaces1 differ
Built-in USB hub	No	No
HDMI	Yes	Yes
HDMI ports quantity	1	1
HDMI versionDiffers	1.4	2.0
DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
DisplayPort versionKnown for one	Unknown — not stated by the source	1.4
Headphone outKnown for one	Unknown — not stated by the source	Yes
VGA (D-Sub) ports quantityKnown for one	1	Unknown — not stated by the source
Networkidentical
Wi-Fi	No	No
Bluetooth	No	No
Ergonomics2 differ
VESA mounting	Yes	Yes
Panel mounting interfaceDiffers	100 x 100 mm	75 x 75 mm
Wall mountable	Yes	Yes
Height adjustment	No	No
Tilt adjustment	Yes	Yes
Tilt angle rangeDiffers	-5 - 20°	-5 - 15°
Plug and Play	Yes	Yes
Power4 differ
Energy efficiency class (SDR)Differs	D	E
Energy efficiency class (HDR)	Not available	Not available
Energy consumption (SDR) per 1000 hoursDiffers	14.9 kWh	21 kWh
Power consumption (typical)Differs	27.1 W	27 W
Power consumption (standby)	0.5 W	0.5 W
Power consumption (max)Differs	28 W	29 W
Power consumption (off)	0.3 W	0.3 W
AC input voltageKnown for one	Unknown — not stated by the source	240 V
Input current	3 A	3 A
AC adapter output voltage	12 V	12 V
Power supply type	External	External
Energy efficiency scale	A to G	A to G
Operational conditionsidentical
Operating temperature (T-T)	0 - 40 °C	0 - 40 °C
Storage temperature (T-T)	-20 - 60 °C	-20 - 60 °C
Operating relative humidity (H-H)	10 - 85%	10 - 85%
Storage relative humidity (H-H)	5 - 90%	5 - 90%
Weight & dimensions10 differ
Width (with stand)Differs	615.1 mm	614.1 mm
Depth (with stand)Differs	189 mm	183.9 mm
Height (with stand)Differs	455.5 mm	458.4 mm
Width (without stand)Differs	615.1 mm	614.1 mm
Depth (without stand)Differs	49.1 mm	45.1 mm
Height (without stand)Differs	364.1 mm	363 mm
Weight (without stand)Differs	3.4 kg	3.84 kg
Bezel width (side)Differs	2.8 mm	1.9 mm
Bezel width (top)Differs	2.8 mm	1.9 mm
Bezel width (bottom)Differs	1.82 cm	1.61 cm
Packaging data4 differ
Package widthDiffers	678 mm	694 mm
Package depthDiffers	118 mm	114 mm
Package heightDiffers	450 mm	458 mm
Package weightDiffers	4.7 kg	5.29 kg
Packaging contentidentical
Stand includedKnown for one	Unknown — not stated by the source	Yes
Cables included	HDMI	HDMI
Power adapter included	Yes	Yes
Quick start guideKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
Automatic brightness control	No	No
Compliance certificates	CE, Electromagnetic Compatibility (EMC), Low Voltage Directive (LVD)	CE, Electromagnetic Compatibility (EMC), Low Voltage Directive (LVD)
E-manual	Yes	Yes
Technical detailsidentical
Native refresh rate	60 Hz	60 Hz

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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