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An addressable RGB LED strip built on 5050 SMD LEDs with a WS2812B control chip inside each LED. Every one of the 60 LEDs per metre can be set to its own 24-bit color, so you can run chasing, rainbow and pixel-mapped effects from a single data line. It runs on 5V DC and draws up to 18W per metre, so plan for a substantial power supply at full white. The non-waterproof IP20 rating and 10mm black or white PCB suit indoor projects: desk lighting, shelves, props and enclosures. Compared with plain analog RGB strips, it costs more and needs a controller that speaks the WS2812 protocol, but it offers per-LED control those strips cannot match.
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Lowest price we've seen: $7.99 on Nov 12 at Amazon. Tracked across 1 store since Nov 12.
Makers who use WS2812B strips like this praise the per-LED control and smooth color mixing, and note that power and data wiring need care. Common complaints are voltage drop on long runs and heat at full white.
This is a WS2812B addressable RGB LED strip. It uses 5050 SMD RGB LEDs, each with a built-in WS2812 control IC. One IC controls one LED chip, so every LED can be addressed on its own.
The strip has 60 individually addressable LEDs per meter. Each LED takes 8 bits of green, red and blue data, which gives 24-bit color and full-color RGB changing effects.
The strip is not waterproof (IP20). It can be cut at every LED.
