Description This is a unique ring - it has a florid body with 24 controllable LEDs. Maybe it will drive the inspiration out of you to make a glowing magic ring! There is a 1*1 square hollow-out in the middle of this module, where you can place a Grove - Encoder in and make it a rotary visual encoder! Features - Circular shape - 24 LEDs, about 5.5 mA drive current for each channel. - Controllable LEDs with florid effects - Grove Interface. Specification - Voltage: 4.5V~5.5V - Current: 5.5mA (for each LED) - Dimension: 4.5cm (ring diameter) For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your using of the product. https://elecena.pl/product/9696395/104030013-arduino-grove-circular-led 2017-08-05 https://elecena.pl/product/9696395/104030013-arduino-grove-circular-led 2017-10-18 https://elecena.pl/product/9696395/104030013-arduino-grove-circular-led 2018-01-10 https://elecena.pl/product/9696395/104030013-arduino-grove-circular-led 2018-01-25 https://elecena.pl/product/9696395/104030013-arduino-grove-circular-led 2021-05-23 https://elecena.pl/product/9696395/104030013-arduino-grove-circular-led 2022-06-01 https://elecena.pl/product/9696395/104030013-arduino-grove-circular-led 2022-12-02 https://elecena.pl/product/9696395/104030013-arduino-grove-circular-led 2025-02-08 https://elecena.pl/product/9696395/104030013-arduino-grove-circular-led 2025-06-21 https://elecena.pl/product/9696395/104030013-arduino-grove-circular-led 2026-03-03