A 144 Hz refresh rate makes scrolling and games noticeably smoother than on a typical 60 Hz monitor, and the 1 ms MPRT response time reduces motion blur. The IPS panel gives 178° viewing angles and even colours, while 85% NTSC coverage and 1500:1 contrast add depth to the picture. The bezel is just 2.1 mm at the top and sides, making it easy to place two monitors side by side. An HDMI cable and an external power adapter are included.
Home users who work and play on the same screen; students who want 144 Hz smoothness but do not need 240 Hz; and dual-monitor desks where narrow bezels keep the gap between screens small. Without the stand the monitor measures 557.7 mm wide, 330.6 mm high and 58.1 mm deep and weighs 2.9 kg. The detachable stand can be swapped for a VESA arm.
| Brand | DAHUA |
|---|---|
| Model name | LM25-B221B |
| Product colour | Black |
| VESA mounting | Yes |
| Manual | Yes |
| Haze rate | 25 |
| Feet colour | Black |
| Pixel pitch | 0.2832 x 0.2802 |
| Plug and Play | Yes |
| Wall mountable | Yes |
| Tilt adjustment | Yes |
| Detachable stand | Yes |
| Frameless design | Yes |
| Surface hardness | 3H |
| Tilt angle range | -5 - 20 |
| Bezel width (top) | 2.1 |
| Height adjustment | No |
| Quick start guide | Yes |
| Bezel width (side) | 2.1 |
| Front bezel colour | Black |
| Bezel width (bottom) | 19.6 |
| Viewable size, vertical | 267.786 |
| Viewing angle, vertical | 178 |
| Viewable size, horizontal | 476.064 |
| Viewing angle, horizontal | 178 |
| Mean time between failures (MTBF) | 30000 |
| Operating relative humidity (H-H) | 10 - 85 |
| EAN | 6937552404779 |
| Display diagonal | 24.5″ |
|---|---|
| Display diagonal (metric) | 62 cm |
| Display resolution | 1920 x 1080 |
| HD type | Full HD |
| Panel type | IPS |
| Display technology | LED |
| Maximum refresh rate | 144 Hz |
| Native aspect ratio | 16:9 |
| Touchscreen | No |
| Pixel density | 89.91 ppi |
| Contrast ratio (typical) | 1500:1 |
| Screen shape | Flat |
| Panel mounting interface | 100 x 100 |
| Response time (MPRT) | 1 |
| Colour gamut standard | NTSC |
| Display number of colours | 16.7 million colours |
| Display brightness (typical) | 300 |
| Storage temperature (T-T) | -20 - 60 |
|---|---|
| Storage relative humidity (H-H) | 5 - 90 |
| Built-in camera | No |
|---|
| Audio output | Yes |
|---|---|
| Built-in speaker(s) | No |
| HDMI ports quantity | 1 |
|---|---|
| HDMI version | 1.4/2.0 |
| HDMI | Yes |
| Built-in USB hub | No |
| DisplayPorts quantity | 1 |
| Power consumption (typical) | 19 W |
|---|---|
| Power consumption (max) | 23.8 W |
| Power consumption (standby) | 0.5 W |
| Energy efficiency class | D |
| Energy efficiency class (SDR) | D |
| Energy efficiency class (HDR) | Not available |
| Energy consumption (SDR) per 1000 hours | 15 kWh |
| Current rating | 2.5 |
| Power supply type | External |
| Power adapter included | Yes |
| Energy efficiency scale | A to G |
| Power consumption (off) | 0.3 |
| AC adapter output voltage | 12 |
| Operating temperature (T-T) | 0 – 40 °C |
|---|---|
| NTSC coverage (typical) | 85 |
| Cables included | HDMI |
|---|---|
| LED indicators | Yes |
| Package type | Box |
| LED backlight | Yes |
| Backlight type | Edge LED |
| Stand included | Yes |
| Low Blue Light technology | Yes |
| Product Net Weight | 2.9 kg |
|---|---|
| Width (without stand) | 557.7 mm |
| Height (without stand) | 330.6 mm |
| Depth (without stand) | 58.1 mm |
| Weight (without stand) | 2.9 kg |
The monitor has an HDMI input (version 1.4/2.0) and Full HD resolution, so a console can be connected. The manufacturer does not specify which refresh rate a console gets over HDMI.
No, there are no built-in speakers. There is an audio output for connecting speakers or headphones.
No, the stand tilts from −5° to 20°. It is detachable, and the VESA 100 × 100 mm mount lets you use an adjustable arm.
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