{"product_id":"three-dimensional-3d-christmas-tree-led-diy-kit-colorful-led-flash-circuit-kit-electronic-fun-suite","title":"Three-dimensional 3D Christmas Tree LED DIY Colorful Flash Circuit","description":"\u003cp\u003eDiscover the Three-dimensional 3D Christmas Tree LED DIY Colorful Flash Circuit — a standout hobbies \u0026amp; creative arts pick featuring premium, compact design for dependable, everyday performance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cp\u003eBrand Name: Aideepen\u003c\/p\u003e\u003cp\u003eCondition: New\u003c\/p\u003e\u003cp\u003eType: Module\u003c\/p\u003e\u003cp\u003eProduct Highlights:\u003c\/p\u003e\u003cp\u003e1. Crafted from premium materials with guaranteed quality\u003c\/p\u003e\u003cp\u003e2. Ideal for welding skill training and DIY enthusiasts, significantly enhancing hands-on capabilities\u003c\/p\u003e\u003cp\u003e3. Features a multicolored LED flashing effect—perfect as a gift or decorative piece\u003c\/p\u003e\u003cp\u003e4. Shipped as loose components requiring customer assembly; includes USB power cable.\u003c\/p\u003e\u003cp\u003e5. Compact design enables versatile applications for convenient use anytime, anywhere.\u003c\/p\u003e\u003cp\u003eProduct Specifications:\u003c\/p\u003e\u003cp\u003eName: Multicolor Christmas Tree Electronics Kit\u003c\/p\u003e\u003cp\u003eOperating Voltage: DC5V (compatible with phone chargers, batteries, etc.)\u003c\/p\u003e\u003cp\u003eVariants: Kit with housing \/ Kit without housing (requires assembly)\u003c\/p\u003e\u003cp\u003eWorking Principle: When connected to a 3-5V power source, the 37 LEDs are divided into 4 groups. Upon powering on, all 4 transistors attempt to turn on simultaneously. However, due to component variations, only one transistor turns on first. Assuming Q1 turns on first, the LED1 group illuminates. As Q1 conducts, its collector voltage drops, lowering the voltage across capacitor C2's left terminal to near 0V. Since capacitor voltage cannot change abruptly, Q2's base voltage also approaches 0V, causing Q2 to cut off. Consequently, the LED2 group connected to its collector turns off. At this point, the high voltage from Q2 charges capacitor C3, raising the voltage at Q3's collector. Q3 rapidly turns on, illuminating the LED3 group. Thus, for a brief period, both Q1 and Q3 have low-level collectors, lighting up the LED1 and LED3 groups. while the LED2 group turns off. However, as the power supply charges capacitor C2 through resistor R2, the base voltage of Q2 gradually increases. When it exceeds 0.7V, Q2 transitions from cutoff to conduction, causing its collector voltage to drop and illuminating the LED2 group. Simultaneously, the voltage drop across Q2's collector through C3 lowers the base voltage of Q3, causing Q3 to transition from conduction to cutoff. Its collector voltage then rises, causing LED3 to turn off. The circuit then cycles through the above process repeatedly, illuminating the three sets of 18 LEDs in sequence. At any given moment, two sets are lit simultaneously. These LEDs are arranged in a crisscross pattern forming a heart shape, continuously flashing in a loop to achieve a flowing display effect.\u003c\/p\u003e\u003cp\u003eShipping List:\u003c\/p\u003e\u003cp\u003eChristmas Tree DIY Kit X1\u003c\/p\u003e\u003ch3\u003eOptions\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Without casing, With casing\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003ch4\u003eQ: What is the Three-dimensional 3D Christmas Tree LED DIY Colorful Flash?\u003c\/h4\u003e\u003cp\u003eA: The Three-dimensional 3D Christmas Tree LED DIY Colorful Flash is a quality hobbies \u0026amp; creative arts pick. Crafted from premium materials with guaranteed quality 2.\u003c\/p\u003e\u003ch4\u003eQ: How do I use the Three-dimensional 3D Christmas Tree LED DIY Colorful Flash?\u003c\/h4\u003e\u003cp\u003eA: The Three-dimensional 3D Christmas Tree LED DIY Colorful Flash is ready to use right out of the box and makes an easy addition to your hobbies \u0026amp; creative arts lineup.\u003c\/p\u003e\u003ch4\u003eQ: Why choose the Three-dimensional 3D Christmas Tree LED DIY Colorful Flash?\u003c\/h4\u003e\u003cp\u003eA: The Three-dimensional 3D Christmas Tree LED DIY Colorful Flash stands out in our hobbies \u0026amp; creative arts range — Ideal for welding skill training and DIY enthusiasts, significantly enhancing hands-on capabilities 3.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the Three-dimensional 3D Christmas Tree LED DIY Colorful Flash?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The Three-dimensional 3D Christmas Tree LED DIY Colorful Flash is a quality hobbies \u0026amp; creative arts pick. Crafted from premium materials with guaranteed quality 2.\"}}, {\"@type\": \"Question\", \"name\": \"How do I use the Three-dimensional 3D Christmas Tree LED DIY Colorful Flash?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The Three-dimensional 3D Christmas Tree LED DIY Colorful Flash is ready to use right out of the box and makes an easy addition to your hobbies \u0026amp; creative arts lineup.\"}}, {\"@type\": \"Question\", \"name\": \"Why choose the Three-dimensional 3D Christmas Tree LED DIY Colorful Flash?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The Three-dimensional 3D Christmas Tree LED DIY Colorful Flash stands out in our hobbies \u0026amp; creative arts range — Ideal for welding skill training and DIY enthusiasts, significantly enhancing hands-on capabilities 3.\"}}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"Without casing","offer_id":47766552117353,"sku":"14:350852#Without casing","price":18.17,"currency_code":"USD","in_stock":true},{"title":"With casing","offer_id":47766552150121,"sku":"14:1202#With casing","price":26.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/Sc2cff54d97fd4541a97167da99b54c32r.webp?v=1783446724","url":"https:\/\/oasis-select.com\/products\/three-dimensional-3d-christmas-tree-led-diy-kit-colorful-led-flash-circuit-kit-electronic-fun-suite","provider":"Oasis Select","version":"1.0","type":"link"}