More Pixel Protocols

LED Pixel Protocol SK6813

Overview

This pixel protocol was designed by OPSCO in China. SK6813 comes in two variants - 5V or 12V. The 12V variant (also called SK6813HV for 'high voltage') is very similar to World Semi's WS2815. SK6813HV uses 12V as its main power input for each chip, VDD, which is then dropped down to 5V inside each pixel for its logic requirements. This allows longer chains of pixels to driven in series, reducing the need for power injection. The control circuit and LEDs are integrated in a 5050 SMD package, which provides a small physical footprint for each pixel.

➤ Check out Advatek's SK6813 Blaze LED Fixtures below

Blaze Pixel Strip

Blaze Pixel Strip

30 or 60 LEDs/m RGB 5m pixel strip with every LED containing in-built 12V to 5V voltage regulator.

Specifications

PixLite Mk1

PixLite Mk2

PixLite Mk3

Clock Type

Data-Only 

Color Resolution

Bits 

Current Control

Physical Package

SMD5050 with integrated LEDs 

RGB

RBGW

Input Voltage

SK6813: 5V SK6813HV: 12V 

Output Pixel Voltage

SK6813: 5V SK6813HV: 12V 

PWM Rate

1200Hz 

Suitable Camera

Up to 40fps 

Data Transfer Rate

800kbps 

Redundant Data Line

Colors

Color 

Brightness 

Wavelength 

Red 

300 – 500 mcd 

620 – 630 nm 

Green 

1000 – 1500 mcd 

515 – 530 nm 

Blue 

200 – 400 mcd 

460 – 475 nm 

Considerations for Use

Advantages

  • For SK6813HV: 12V operation allows for long cable lengths and long chains of pixels
  • High PWM rate allows for filming these pixels with cameras up to 40fps
  • Redundant data line reduces chance of entire strip failure

Disadvantages

  • Data-only restricts refresh rates to be limited by the speed of the protocol, which can be slow
  • Only 8 bits of data for each color makes dimming curves less smooth

Operational Behavior

WS2815 has been known to induce defects during manufacturing which cause the pixels to display erratic behavior for a brief moment after power up. While many of the features of SK6813 are adopted from WS2815, the design of SK6813 reduces the chance of these same defects during manufacturing. This design sets it apart, making it a more reliable and stable choice.

PixLite Support

Are you looking for SK6813 pixel drivers that work with Art-Net or sACN?

All PixLite Mk2 and Mk3 products support SK6813 as an available Pixel IC type, so get in touch with us to find out how the lighting specialists at Advatek can support you in your pixel lighting project.

A4-S Mk3

PixLite® A4-S Mk3

Driving up to 24 universes of data, and offering easy mounting, sleek design and electrical fault protection — what’s not to love?

E4-S Mk3

PixLite® E4-S Mk3

The E-series LED pixel controller is made for tighter budgets thanks to its ability to drive up to 24 universes of LED pixel control and route power directly to LEDs.

E16-S Mk3

PixLite® E16-S Mk3

The most cost-efficient 16-output commercial grade pixel controller in the world, the E16-S Mk3 drives up to 96 universes of LED pixel control.

T8-S Mk3

PixLite® T8-S Mk3

With a data transmission range of 300 meters, this user-friendly long range pixel controller system is the high-impact solution for professional installations.