WS2811 vs WS2812 vs WS2815 LED Strip IC Comparison Guide
WS2811, WS2812B, WS2813, and WS2815 are popular addressable LED strip solutions, but they differ in operating voltage, IC design, pixel control, backup data transmission, and power-distribution requirements.
This guide compares their practical differences and explains which option may be more suitable for short installations, long runs, individual-pixel control, and projects that require improved fault tolerance.
WS2811 vs WS2812B vs WS2813 vs WS2815: Quick Answer
- WS2811: An external-IC solution available in different finished-strip configurations. The voltage and number of LEDs controlled per pixel depend on the actual strip design.
- WS2812B: A common 5V addressable LED with an integrated IC, widely supported by controllers and development platforms.
- WS2813: A 5V integrated-IC solution commonly designed with a backup data path for improved signal continuity.
- WS2815: A 12V integrated-IC solution commonly designed with backup data transmission and better suitability for longer power runs.
WS2811, WS2812B, WS2813, and WS2815 Comparison
| Feature | WS2811 | WS2812B | WS2813 | WS2815 |
|---|---|---|---|---|
| IC design | External IC | Integrated IC | Integrated IC | Integrated IC |
| Typical voltage | 5V, 12V, or 24V, depending on the strip | 5V | 5V | 12V |
| Pixel control | Depends on the finished-strip design | Typically individual-pixel control | Typically individual-pixel control | Typically individual-pixel control |
| Data path | Typically one data path | Typically one data path | Main and backup data paths | Main and backup data paths |
| Breakpoint transmission | Typically not supported | Typically not supported | Supported in common designs | Supported in common designs |
| Power distribution | Depends on voltage and circuit design | 5V systems usually require closer voltage-drop planning | 5V systems usually require closer voltage-drop planning | 12V is generally more suitable for longer power runs |
| Typical application | Cost-sensitive or grouped-pixel designs | General addressable lighting and DIY projects | 5V projects requiring improved fault tolerance | Longer installations requiring 12V and backup data |
Note: This table describes common implementations. Final specifications vary by LED package, PCB design, pixel grouping, LED density, and manufacturer. Always confirm the approved product datasheet and sample before ordering.
What Is a WS2811 LED Strip?
WS2811 is a widely used addressable LED driver IC. Unlike WS2812B, WS2813, and WS2815, the controller is normally installed outside the LED package.
A finished WS2811 strip may use different operating voltages and pixel arrangements. For example, some designs control a group of LEDs as one pixel. Buyers should therefore confirm both the number of LEDs per metre and the number of controllable pixels per metre.
What Is a WS2812B LED Strip?
WS2812B combines an RGB LED and its control circuit in one package. It commonly operates at 5V and supports individual-pixel control.
WS2812B is widely supported by addressable LED controllers and development platforms, making it suitable for decorative lighting, LED matrices, signage, prototypes, and other short-to-medium addressable installations.
Because it operates at 5V, voltage drop and current must be planned carefully when the strip is long or uses a high LED density.
What Is a WS2813 LED Strip?
WS2813 is commonly implemented as a 5V addressable LED with an integrated IC and a backup data path. The backup path can allow downstream pixels to continue receiving data after certain single-pixel signal failures.
The actual fault-tolerance behaviour depends on the finished strip design and the location of the failure. It should be verified using the approved production sample rather than assumed from the IC name alone.
What Is a WS2815 LED Strip?
WS2815 is commonly implemented as a 12V individually addressable RGB LED solution with main and backup data paths.
Compared with a typical 5V strip, a 12V system usually reduces the percentage impact of the same cable voltage loss. This can make WS2815 easier to use in longer installations, although power injection, cable size, current, and connector loading must still be calculated.
Are All Four LED Strips Individually Addressable?
WS2812B, WS2813, and WS2815 are commonly used in designs where each LED package acts as one controllable pixel.
WS2811 is different because the IC is external. Depending on the finished strip, one WS2811 IC may control one LED or a group of LEDs. Some 12V strips use three LEDs as one pixel, while some 24V products use a larger group. Always check the pixel quantity rather than relying only on the LED quantity.
