Bezel-free native 1080P, 4K Customized resolution LED video wall system. Ultimate visual performance with 14 bit grey scale, 24/7 reliability, 50,000hours lifespan at least. Dot by dot calibration ensures excellent color and brightness uniformity. Low power consumption, Environment friendly. Fan-less design, no noise. DISPLAY CHARACTERISTICS Screen Size 55'’ Resolution 1920 × 1080 (Up to 3840×2160 for 2*2 installation ) Display Mode 16:9 Bezel(U/L),(R/B) 0.7mm(U/L), 0.8mm(R/B) Contrast ratio 4000:1 Display Color 8 bit - 16.7M Pixel Pitch(mm) 0.248(H)×0.248(V) Brightness(nits) 500cd/ Maximum Pixel Frequency 148.5MHz Viewing Angle 178(H) /178(V) Response Time 5ms Enhanced Content Management LAN Daisy Chain Performance A LAN daisy chain allows you to execute commands to control and monitor the screens and even update their firmware. Lg’s LED backlight technology guarantees high uniformity in brightness to ensure a clear picture. On other screens, certain spots may appear darker than others, but the new 55inch generates high visibility and a consistent brightness across the whole screen. Uniform Brightness Through Video Wall Image Creation (VIC) technology, color and brightness differences are compensated in circuit part with an algorithm to make the panels into a same characteristic so that each video wall maintains the consistent white balance. Video Wall Image Creation The 0070-24455 includes an image improvement algorithm. that can adjust to objects located in the boundary of bezel. for a seamless viewing experience. Image Gap Reduction Power AC 100-240V ∼(+/-10%), 50/60Hz Max:198W, Typ.:136W, BTU(Max):524.14W Mechanical Specification 1213.5 x 684.3 x 96.6mm 1355 X 809 X 320mm -10∼55℃ 50000Hours VESA size: 600x400 INCLUDED ACCESSORIES Quick Setup Guide,Cat5/6, Software CD, Power Cord