SK6812-3535 RGB Pixel Digital LED Strip Lights, 
1, Top SMD internal integrated high quality external control line serial cascade constant current IC;
2, Control circuit and the chip in SMD 3535 components, to form a complete control of pixel, color mixing uniformity and consistency;
3, Built-in data shaping circuit;
4, Gray level adjusting circuit (256 level gray scale adjustable);
5, Using a typical data transmission frequency of 800 Kbps, when the refresh rate of 30 frames per second;
6, The transmission distance between two points over 10M;
7, 5 meter per roll,Cut-able of each single LED/Pixel;

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180LEDs/m SK6812-3535 RGB Pixel Digital LED Strip Lights Parameters

OPTICAL PARAMETERBASIC PARAMETER
Model No.: NS-6812S180-3535-5V,   LED Q’ty: 180LEDs/m,  Pixels: 180/m ,  Gray Scale:256
Power/m: 13.5W,    Input voltage: DC5V,    Max current/LED: 20Ma,     Warranty: 3years,
Illumination Angle: 120° ,   Working temperature: -20℃~+45℃,  Working hour: 30000h
Energy grade: A,    SMD LED spacing: 5.5mm,   CRI(Ra): >80Ra,  PCB: White/Black
Minim cuttable length:  every LED is cuttable,  PCB Width: 8mm
SK6812 is the 3535 with built-in IC chipset, it has the similar datasheet with ws2812b, same protocol.