Addressable LEDs

Standard RGB strips change color as a single unit — every LED shows the same color at the same time. Addressable strips break this limitation by giving each LED (or small segment) its own tiny controller chip. This means you can display a rainbow gradient, flowing animations, music-reactive patterns, or any combination of colors simultaneously along the strip.

The most common addressable LED is the WS2812B — a 5V, RGB chip with an integrated controller that's become the standard for hobbyist and consumer projects. SK6812 is its upgraded cousin, adding a dedicated white LED to each pixel for better white light quality. WS2815 runs on 12V instead of 5V, allowing longer runs without voltage drop, and includes a backup data line for reliability.

Addressable strips require a controller — either a dedicated microcontroller (Arduino, ESP32 for DIY projects), a consumer controller (Govee, SP108E), or a smart home integration (WLED firmware is popular for home automation). The controller sends data signals to each LED, telling it what color and brightness to display. This data signal runs at high speed, which is why addressable strips are more sensitive to wire length and interference than standard strips.