Adafruit
30mm Dots - 12V Digital RGB LED Pixels (Strand of 20) [WS2801]
A strand of 20 digitally-controllable RGB LED pixel dots, each containing three 5050 RGB LEDs and a WS2801 controller chip. The pixels are encased in translu...
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A strand of 20 digitally-controllable RGB LED pixel dots, each containing three 5050 RGB LEDs and a WS2801 controller chip. The pixels are encased in translucent white 30mm domes for weatherproof operation and even 180° colour spread, making them well-suited for outdoor signage and large-scale lighting installations.
Data is shifted from one pixel to the next via a clock and data line, so strands can be easily cut shorter or chained together. Each pixel is individually addressable with 24-bit colour (8-bit PWM per channel) and constant-current LED driving ensures even colour throughout the strand.
Key Features
- WS2801 Controller – 24-bit colour (16 million shades) per pixel
- 3× 5050 RGB LEDs Per Dot – ~4000 mcd total brightness per pixel
- Weatherproof Enclosure – Translucent white dome with mounting flanges
- Chainable – JST SM 3-pin connectors to link multiple strands
- Constant-Current Driven – Even colour output across the strand
- Two-Wire Control – Clock + data, works with any two digital pins on a microcontroller
Specifications
- Operating Voltage – 12V DC
- Pixels Per Strand – 20
- LEDs Per Pixel – 3× 5050 RGB (controlled as one unit)
- Colour Depth – 24-bit (8-bit per channel)
- Pixel Diameter – 30mm
- Connector – JST SM 3-pin (data/clock) + separate power wires
Ideal For
- Outdoor LED signage and large-scale installations
- Architectural and decorative lighting
- Arduino-controlled light shows and animations
Package Contents
- 1× Strand of 20 WS2801 RGB LED Pixel Dots (30mm)
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- Colour depth
- Colour depth describes how many different colours a display can show. A 65K-colour display can show about 65,000 colours, which is useful for icons, graphs, and simple full-colour interfaces but is less detailed than modern phone or computer screens.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- PWM
- Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.
- RGB
- Short for red, green and blue, the three primary colours of light that are mixed in varying amounts to make a wide range of colours. In electronics RGB can refer to an LED or pixel that blends these three colours, or to a colour signal or interface that carries separate red, green and blue channels.
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36mm led pixels
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