LED strips are increasingly popular for providing intense illumination in various settings. They enhance focus and creativity, making them versatile for many tasks. Addressable LED strips offer various lighting effects such as running chases, flowing fades, meteor trails, etc. With a control system, you can even customize lighting effects. However, distinguishing between different types can be challenging.
The WS2811 and WS2812B LED strips are the most popular among digital programmable LED strip lights. This article will compare WS2811 and WS2812B to help you choose the right LED strip.
Overview of WS2811
WS2811 is designed for LED driver circuits, offering three output channels. It includes an intelligent digital port data latch, a signal-reshaping amplification drive circuit, and a precision internal oscillator. Operating at 12V, it features a delay turn-on function to reduce power supply ripple.
Key features of WS2811 include:
- External IC for control
- Pulse-width modulation (PWM) signal control
- Operates at DC 12V
- Common applications: facade lighting, backlighting, holiday decorations, and automotive lighting
Overview of WS2812B
WS2812B is a smart LED light source that integrates the control circuit and RGB chip into a 5050 component package. These LEDs feature a built-in IC for communication via a single-wire interface, with a signal-reshaping amplifier drive circuit and a programmable constant current control element.
Key features of WS2812B include:
- Built-in IC for simplified wiring
- Operates at DC 5V
- Precise individual LED control
- Common applications: smart home lighting, artistic installations, and detailed LED animations
WS2811 vs. WS2812B: Features Comparison
Feature | WS2811 | WS2812B |
IC Type | External IC | Built-in IC |
Voltage | 12V | 5V |
Control | Groups of 3 LEDs | Individual LED control |
Power Consumption | Lower | Higher |
Wires | Positive, Negative, Data | Positive, Negative, Data |
Package Type | SOP-8 | 5050 RGB LED Package |
WS2811 and WS2812B Differences
Power:
- WS2811: 12V operating voltage
- WS2812B: 5V operating voltage
- Voltage drop can be an issue for WS2812B in long strips
For example, if you have a strip with 30 LEDs and experience a 2V voltage drop near the end, the last few LEDs will receive around 10V if you use a WS2811 chip. This is within the acceptable range for an LED designed for 12V operation. However, if you’re using a WS2812B, which operates at 5V, the voltage drop will be 3V instead of the expected 5V. This represents a significant voltage decrease.
LEDs Controlled:
- WS2811: Controls groups of 3 LEDs
- WS2812B: Controls individual LEDs
Comparison of LEDs Controlled
Feature | WS2811 LED Strip | WS2812B LED Strip |
Control Mode | 3 LEDs Group Control | Individual Control |
IC Quantity (60 LEDs/M) | 20 Pcs | 60 Pcs |
Power Consumption:
- WS2811: Higher power consumption (12V external IC)
- WS2812B: Lower power consumption (5V built-in IC)
Color:
- WS2811: RGB, Addressable White, RGB+W, RGB+CCT
- WS2812B: RGB only
Which One to Choose?
- WS2811 is better for longer runs, multiple color modes (including white and tunable white), and situations where individual control over LEDs isn’t necessary.
- WS2812B is ideal for shorter setups, dynamic and intricate lighting effects, and when you need to control each LED independently. It’s also more power-efficient for small-scale projects.
WS2811 Applications
- Outdoor Building Lighting: Ideal for large-scale installations where uniform lighting is required.
- Holiday Decorations: Simplified programming for group control of LEDs.
- Automotive Lighting: Used for decorative and functional vehicle lighting.
WS2812B Applications
- Smart Home Integration: Enables individual LED control for dynamic lighting effects.
- Small-Scale Art Installations: Artists can achieve intricate lighting designs.
- Wearable Tech: Due to its compact design and low power requirements.
Pros and Cons
WS2811 Pros
- Suitable for long strips without voltage drop issues.
- Cost-effective for larger installations.
WS2811 Cons
- Limited to group control (3 LEDs at a time).
- Higher power consumption at 12V.
WS2812B Pros
- Precise control with individually addressable LEDs.
- Lower power consumption.
- Compact design.
WS2812B Cons
- Prone to voltage drop over long distances.
- More expensive compared to WS2811.
Choosing the Right LED Strip
Consider WS2811 if:
- Your project requires long LED strips.
- Individual LED control isn’t necessary.
- Cost is a major concern.
Consider WS2812B if:
- You need fine-grained control over each LED.
- You’re working on intricate designs or animations.
- Your installation has limited space and power constraints.
Conclusion
Both WS2811 and WS2812B offer vibrant colors and versatility, making them suitable for various applications. WS2811 is better for large installations with simpler control needs, while WS2812B excels in projects requiring detailed lighting effects and precise control.