Description: 【Versatile Lighting Modes】: The DIY  LED Shell Waterfall Light Kit offers seven distinct lighting modes, allowing you to  the ambiance to your preference. Easily switch between modes with a simple button press, and enjoy features like sequential light and color specific displays 【Adjustable Light Speed】: Tailor the speed of the light with six different speed settings ranging from 1000ms to 10ms. Each press of the button adjusts the speed, providing flexibility for various lighting effects, all while retaining your last setting even after power off 【Material】: Made of ABS material, Soldering Practice Kit is sturdy for long term use  【Compact and Portable】: With dimensions of 38.5mm x 50.6mm , this LED kit is both lightweight and portable, making it easy to carry around or hang as a decorative piece using the included lanyard 【User Friendly Operation】: Featuring intuitive button controls for mode switching and speed adjustment, along with a convenient wake up function from sleep mode, this DIY kit is for both beginners learning electronics assembly and enthusiasts looking for an engaging project Specification: Power supply: 3V  Working current: 0.5mA@3V (lights on) 0.19mA@3V ( light on) Maximum current: 1.5mA@3V (when started) Sleep mode current: 0.4uA@3V LED display refresh rate: about 245Hz Size Chart: Length:5.06cm/1.99inch Width:3.85cm/1.52inch Package Includes: 1 DIY Soldering Project Kit Note: 1.This is not infant toy , please take away from children to avoid eating. 2.Please allow slightly errors 1-2cm differences due to manual measurement.