{"product_id":"voice-activated-led-water-light-kit-cd4017-diy-electronics","title":"Voice-Activated LED Water Light Kit – CD4017 DIY Electronics","description":"\n\u003ch2\u003eVoice-Activated LED Water Light Kit – CD4017 DIY Electronics Project\u003c\/h2\u003e\n\u003cp\u003eBring your electronics projects to life with the \u003cstrong\u003eBS Voice-Activated LED Water Light Kit\u003c\/strong\u003e. Powered by the classic \u003cstrong\u003eCD4017 decade counter IC\u003c\/strong\u003e, this kit creates a stunning cascading \"water flow\" LED light effect that responds to sound — clap your hands, speak, or play music and watch the LEDs dance in sequence. Whether you're a hobbyist, student, or maker, this is the perfect hands-on introduction to analog and digital electronics.\u003c\/p\u003e\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eWhy You'll Love This Kit\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoice\/Sound Activated:\u003c\/strong\u003e An onboard microphone picks up ambient sound to trigger the flowing LED light sequence — great for interactive displays and experiments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCD4017 Decade Counter:\u003c\/strong\u003e Learn how this fundamental IC drives sequential LED outputs — a core concept in digital electronics education.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Voltage Range:\u003c\/strong\u003e Operates on 4V–12V, making it compatible with common batteries, USB power banks, and bench supplies.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Operating Temperature:\u003c\/strong\u003e Rated for -40°C to 80°C, so it performs reliably in a variety of environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDIY Soldering Project:\u003c\/strong\u003e Ideal for electronics students and beginners — solder the components yourself for a rewarding hands-on build experience.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo High-Concern Chemicals:\u003c\/strong\u003e Kit components are free of high-concern chemical substances.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Customizable:\u003c\/strong\u003e Small form factor, customizable for integration into lanterns, display panels, science fair projects, and more.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCore IC:\u003c\/strong\u003e CD4017 Decade Counter\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEffect Type:\u003c\/strong\u003e Sequential \/ \"Water Flow\" LED\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrigger:\u003c\/strong\u003e Voice \/ Sound Activated (microphone input)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e 4V – 12V DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -40°C to 80°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Concern Chemicals:\u003c\/strong\u003e None\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 Kit\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Made in Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWho Is This For?\u003c\/h3\u003e\n\u003cp\u003eThis kit is perfect for:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStudents learning electronics and circuit theory\u003c\/li\u003e\n  \u003cli\u003eMakers and hobbyists building interactive light displays\u003c\/li\u003e\n  \u003cli\u003eScience fair and school project participants\u003c\/li\u003e\n  \u003cli\u003eAnyone who enjoys soldering and DIY electronics builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You Might Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What power supply does the Voice-Activated LED Water Light Kit require?\u003c\/h4\u003e\n\u003cp\u003eA: The CD4017 LED water light kit supports a wide supply voltage range of 4V to 12V DC. You can power it with AA batteries, a 9V battery, a USB power bank with a voltage booster, or a bench power supply within this range.\u003c\/p\u003e\n\u003ch4\u003eQ: Do I need soldering skills to assemble this DIY electronics kit?\u003c\/h4\u003e\n\u003cp\u003eA: Basic soldering experience is helpful, as this is a through-hole DIY kit designed for hands-on assembly. It is an excellent beginner-to-intermediate project for those learning to solder and understand electronic circuits. A soldering iron, solder, and basic tools are required (not included).\u003c\/p\u003e\n\u003ch4\u003eQ: How does the voice activation feature work on this LED kit?\u003c\/h4\u003e\n\u003cp\u003eA: The kit includes an onboard microphone that detects sound — such as clapping, music, or speaking. When sound is detected, it triggers the CD4017 decade counter IC to advance the LED sequence, creating a flowing \"water light\" animation that reacts in real time to the audio environment.\u003c\/p\u003e\n\u003ch4\u003eQ: Can this kit be used inside a lantern or decorative enclosure?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The compact board and wide operating temperature range (-40°C to 80°C) make it suitable for integration into lanterns, display cases, science projects, and custom enclosures. Its customizable design allows you to adapt it for a variety of creative applications.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What power supply does the Voice-Activated LED Water Light Kit require?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The CD4017 LED water light kit supports a wide supply voltage range of 4V to 12V DC. 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