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Dahua Technology Releases 2025 ESG Report: Advancing Sustainable Development Through Digital Intelligence

2026-04-29

Dahua Technology Releases 2025 ESG Report: Advancing Sustainable Development Through Digital Intelligence

LM55-S400N

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LM55-S400N

Dahua 55" UHD LED Monitor

Key Points
    • Elegant, robust design with four-side ultra-narrow bezels and a fullmetal body. • Engineered for 24/7 operation with a professional-grade anti-glare panel and dedicated power supply. • Advanced thermal system maintains stable performance through optimized airflow. • True-color consistency across a 178° viewing angle, free from shift or distortion. • Offers flexible control via seven-button operation or remote control management. • Integrated dual stereo speakers deliver clear audio without external devices. • Energy-efficient design preserves vivid visuals while reducing power consumption.
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Datasheet
LM55-S400N

Specifications

Display

Model DHI-LM55-S400N
LCD Technology IPS
Backlight DLED
Screen Size 55 inch
Aspect Ratio 16:9
Viewing Size 1209.6 (H) × 680.4 (V) mm
Screen-to-Body Ratio ≥90%
Viewing Angle 178° (H)/178° (V)
Display Mode Horizontal
Pixel Pitch 0.3150 mm × 0.3150 mm
Pixels Per Inch 80.7
Resolution 3840 (H) × 2160 (V)
Refresh Rate 60 Hz
Display Color 1.07G (8 bits + FRC)
Color Gamut 72% NTSC
Brightness 500 cd/m²
Contrast Ratio 1200:1
Response Time 8 ms
Lifespan 30,000 hrs
Operation Hours 7 × 24 H
Surface Treatment Haze 25%, 3H
Low Blue Light Software blue light protection

Device Ports

Input Port 2 x HDMI 2.0 (3840 × 2160@60 Hz), 1 × DP 1.4 (3840 × 2160@60 Hz), 1 × DVI (3840 × 2160@30 Hz), 1 × VGA (1920 × 1080@60 Hz), 1 × USB 2.0, 1 × Audio in, 1 × RS-232 in
Output Port 1 × RS-232 out
Speaker 2 × 10 W

Power & Environmental Conditions

Power Supply 100–240 VAC (±10%), 50/60 Hz
Power Type Built-in Power
Power Consumption 100 W (basic), 116 W (typ.), 125 W (max)
Standby Power Consumption <0.5 W
Operating Temperature 0 °C to +40 °C (+32 °F to +104 °F)
Operating Humidity 10%–85% (RH)
Storage Temperature –20 °C to +60 °C (–4 °F to +140 °F)
Storage Humidity 5%–90% (RH)

General

Product Dimensions 1,234.6 mm × 705.4 mm × 57.5 mm (48.61" × 27.77" × 2.26") (W × H × D), without wall-mount bracket
Package Size 1,335 mm × 835 mm × 160 mm (52.56" × 32.87" × 6.30") (W × H × D)
Frame Width U/L/R/D: 9.9 mm/9.9 mm/9.9 mm/9.9 mm (0.39"/0.39"/0.39"/0.39")
Net Weight 16 kg (35.27 lb)
Gross Weight 19.5 kg (42.99 lb)
Casing Color Black
Control Mode Seven-button / Remote Control
Wall Mount VESA 400 mm × 400 mm (15.75" × 15.75")
Accessory Power cord, wall-mount bracket, HDMI cable, remote control, user's manual, legal and regulatory information etc.

Certification

Certifications CE EMC, CE LVD, CE ERP

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