– Dot pitch: 20mm.
– Tube configuration: 2R1G.
– Single tube parameters: 5mm perfect circle.
– LED material: Red LED uses ultra-high brightness aluminum, indium, gallium, phosphorus four-element tube, pure green LED and pure blue LED use ultra-high brightness potassium nitride tube.
– Lighting angle: 30° high brightness.
– External material: galvanized sheet.
– Color and process: black spray-coated.
– Communication and control method: RS-232, RS-485, TCP/IP (both available on the controller device).
– Brightness adjustment: automatic or manual.
– Pixel density: 2500 dots/m2, pixel resolution: 32×160.
– Screen size: 640mm×2500mm.
– Refresh rate: ≥1000Hz.
– Visible distance: static visual recognition distance ≥250m, dynamic visual recognition distance ≥210m (vehicle speed 120km/h).
– LED is driven by constant current and has overcurrent protection function.
– Working environment temperature: -55℃～+55℃, the variable information board has the ability to be used in ultra-low temperature environment and works normally at -55℃.
– Working humidity: 5%～95%.
– Working voltage: AC220V/50Hz.
– Average time between failures: ≥15000 h.
– Discrete failure rate: <1‰.
– Protection level: IP66.
– Power: brightness 8000cd/㎡, (the brightness should have a 20% margin in the initial state).
– Waterproof up to IP68.
– Contains information display controller, control software and related power switch.
– Contains signal light display content switcher, and provides PC control software.
