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| Place of Origin | China |
| Brand Name | TBC |
| Certification | CE-EMC, CE-LVD, RoHS, ETL, FCC |
| Model Number | D3.91 |
Stage Led Screen P3.91 500x500mm Nation Star SMD2020 Wireless Connection Front Maintenance Module
Wireless Data and Power Connection
Unique design, quick and clean look, wireless yet stable data and power connection method
Adjustable Angle Lock, Flexible Stage Design
Arc-shaped connection available, with angle adjustment device, concave and convex 10 degrees of adjustment as you wish for different stage.
Light Weight Cabinet Design, One Man Operation
Weight only 8kg, easy to handle. Die cast aluminum cabinet, perfect splicing without gaps. Fast locking makes assembly and disassembly extremely easy. High-quality plugs ensure reliability.
Front Maintenance Magnetic Module
Snap-in quick disassembly design, maintenance and installation is more efficient and convenient.
Absolute 4K HD Display Visual Effects
High contrast 3000:1 and HD 4K perfect picture quality, bring you absolute visual enjoyment.
easily attract attention, greatly enhance the value of advertising.
| Parameter | Value | Unit |
| Brightness | 1000 | nits |
| Viewing angle - Horizontal | 160(+80/-80) | deg. |
| Viewing angle - Vertical | 160(+80/-80) | deg. |
| Cabinet weight | 11 | kg |
| Cabinet width | 500 | mm |
| Cabinet height | 1000 | mm |
| Cabinet depth | 80 | mm |
| Cabinet material | Aluminum | |
| Ingress protection (Front/Rear) | IP40/IP20 | IP |
| Operating temperature range | 0 to 40 | deg. C |
| Operating humidity range | 10％ to 90％ | HR |
| Pixel type and configuration | SMD 3in1 | R/G/B |
| Pixel pitch | 3.906 | mm |
| Pixel matrix per cabinet | 128x256 | |
| Pixels per cabinet | 32768 | |
| Pixels per sq. meter | 65544 | |
| Colours | 281trillion | |
| Digital processing | 16 | bit |
| Display refresh rate | 1440 | Hertz |
| Input voltage | 110/240 | VAC |
| Input power (max/avg) | 600/210 | Watts per sq.m |
| Lifetime (50%Brightness) | ≥100000 | Hours |
| Data interconnection | CAT6 cable/Fiber | |
| Operating system | Windows(XP/Vista/7/8/10) |
