WS2808 Pixel Protocol
Manufacturer: WorldsemiA 12V single-wire addressable RGB pixel with 8-bit colour, a self-regenerating data stream, and a redundant backup data line for reliable long runs.
Specifications
| Specification | Detail |
|---|---|
| Clock Type | Data-Only |
| Color Resolution | 8 Bits |
| Physical Package | SMD5050 with integrated LEDs |
| RGB | Yes |
| RGBW | No |
| Output Pixel Voltage | 12V |
| PWM Rate | 2000Hz |
| Suitable Camera | Up to 67fps |
| Redundant Data Line | Yes |
Strengths
- Single-wire, self-clocking data needs only one signal conductor per run, and each pixel regenerates the stream to preserve signal integrity over longer chains.
- A redundant data line keeps the string running past a failed pixel instead of losing every node downstream, valuable for permanent or hard-to-service installs.
- PWM at 2000Hz is comfortably flicker-free for cameras up to the rated 67fps, covering typical broadcast and event capture while delivering 24-bit RGB at 12V.
Limitations
- As a data-only single-wire protocol the timing is tolerance-sensitive: reliable operation depends on cable length, connector quality, and adequate power injection, and the redundant data line mitigates but does not eliminate this.
- 8-bit-per-channel colour (24-bit RGB) is the industry norm but limits very smooth low-level fades, and the 2000Hz PWM, while camera-safe to the rated 67fps, leaves limited headroom for higher-speed cinema capture.
Overview
The WS2808 is a single-wire, individually addressable RGB pixel in an SMD5050 package with integrated LEDs. Each node latches 24-bit colour (8 bits per channel), regenerates the data stream, and passes it down the chain, so longer runs stay clean without a separate clock line. It runs at 12V, drives PWM at 2000Hz for flicker-free capture up to 67fps, and carries a redundant data line so one failed pixel does not break the whole string. The WS2808 is commonly attributed to Worldsemi. ENTTEC is not affiliated with Worldsemi.
Mapping an installation? ELM, ENTTEC's free LED pixel mapping software, drives the controllers above over Art-Net and sACN, from a single fixture to building-scale maps.
ENTTEC has been engineering lighting control in Australia since 1999, and shipping LED pixel controllers since the original Pixelator in 2014.