{"product_id":"3mm-rgb-flash-led-diodes-fast-slow-rainbow-multicolor-10pcs","title":"10PCS 3mm RGB Flash LED Diodes – Fast \u0026 Slow Rainbow Color","description":"\n\u003ch2\u003e10PCS 3mm RGB Flash LED Diodes – Fast \u0026amp; Slow Rainbow Multi-Color Light Beads\u003c\/h2\u003e\n\u003cp\u003eBring vibrant, eye-catching color to your next DIY electronics or decoration project with these \u003cstrong\u003e3mm RGB flashing LED diodes\u003c\/strong\u003e from HVIERO. Each pack includes 10 clear-lens bulbs that cycle automatically through red, green, and blue — no additional controller needed. Available in both \u003cstrong\u003efast flash\u003c\/strong\u003e and \u003cstrong\u003eslow flash\u003c\/strong\u003e modes, these compact emitting diodes are perfect for everything from billboard accents and holiday displays to home bar ambiance and landscape lighting.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuto RGB Color Cycling:\u003c\/strong\u003e Built-in controller cycles through red, green, and blue automatically — no external driver required.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast or Slow Flash Mode:\u003c\/strong\u003e Choose the flash speed that suits your project — energetic rapid strobing or a gentle, smooth color transition.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWater-Clear Lens:\u003c\/strong\u003e Transparent colloidal lens delivers crisp, vivid color output with maximum visibility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Voltage \u0026amp; Energy Efficient:\u003c\/strong\u003e Operates at 2.0–3.4V with just 10–20mA current draw — approximately 40% lower power consumption than traditional incandescent options.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Operating Temperature Range:\u003c\/strong\u003e Rated from -55°C to +100°C, suitable for both indoor and outdoor environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo Harmful Materials:\u003c\/strong\u003e Mercury-free construction for safer handling and disposal.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLong Service Life:\u003c\/strong\u003e Durable solid-state construction ensures extended use across many projects.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuick Response Time:\u003c\/strong\u003e Near-instantaneous activation, ideal for dynamic lighting effects and signage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e F3 3mm Fast\/Slow Flash RGB Round LED (700A\/B-45)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLens:\u003c\/strong\u003e Water clear \/ colloidal transparent\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eForward Voltage:\u003c\/strong\u003e 3.2–3.4V (blue, green) \/ 2.0–2.4V (red)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Current:\u003c\/strong\u003e 10–20mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Consumption:\u003c\/strong\u003e 100mW\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePulse Current:\u003c\/strong\u003e 60mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReverse Voltage:\u003c\/strong\u003e 6V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReverse Current:\u003c\/strong\u003e 10µA (test condition: 5V)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLead Length:\u003c\/strong\u003e Positive 17.5mm \/ Negative 15.5mm (±0.5mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSoldering Temperature:\u003c\/strong\u003e 260°C (complete within 5 seconds)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWorking Temperature:\u003c\/strong\u003e -55°C to +100°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e -55°C to +100°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e CE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 10 PCS per pack\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDIY electronics, breadboard circuits, and hobbyist projects\u003c\/li\u003e\n  \u003cli\u003eBillboard and signage decoration\u003c\/li\u003e\n  \u003cli\u003eHoliday sculptures, light displays, and festive décor\u003c\/li\u003e\n  \u003cli\u003eBars, discos, entertainment venues, and retail showcases\u003c\/li\u003e\n  \u003cli\u003eLandscape lighting: bridges, parks, porches, staircase railings, ceilings\u003c\/li\u003e\n  \u003cli\u003eActive signs, displays, and themed installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e10× 3mm Fast or Slow Flash RGB Round LED Diodes (select your preferred flash mode)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/0-25mm-1000-turn-precision-copper-inductor-coil-diy-electronics\"\u003e0.25mm 1000-Turn Precision Copper Inductor Coil for DIY Circuits\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-channel-relay-module-dc-3-3v-24v-optocoupler-arduino\"\u003e1-Channel Relay Module DC 3.3V–24V Optocoupler for Arduino\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/0-300mm-adjustable-pcb-holder-360-rotation-soldering-stand-clamp\"\u003e0–300mm PCB Holder Stand | 360° Rotation Soldering Clamp\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more information on LED technology and safety standards, visit the U.S. Consumer Product Safety Commission (CPSC).\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Do these 3mm RGB flash LED diodes require an external controller to change colors?\u003c\/h4\u003e\n\u003cp\u003eA: No! Each LED contains a built-in integrated circuit that automatically cycles through red, green, and blue colors. Simply connect them to a compatible power supply (2.0–3.4V) and they flash on their own — no external controller, driver, or microcontroller needed.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the difference between the fast flash and slow flash versions?\u003c\/h4\u003e\n\u003cp\u003eA: The fast flash version rapidly strobes through the RGB color sequence, creating a lively and energetic lighting effect — great for party lighting, bar décor, or dynamic signage. The slow flash version transitions smoothly and gradually between colors, lending a calmer, more atmospheric glow suitable for ambient decoration or landscape lighting.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can these LEDs be used outdoors?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. These LEDs are rated for a wide operating temperature range of -55°C to +100°C, making them suitable for outdoor installations such as garden lighting, bridge railings, porches, and park landscapes. However, they are not waterproof on their own — for permanent outdoor use, consider using a protective enclosure or waterproof housing.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What power supply do I need for these RGB flash LEDs?\u003c\/h4\u003e\n\u003cp\u003eA: These diodes operate at 2.0–3.4V forward voltage with a current of 10–20mA. A standard 3V coin cell battery, USB-regulated power supply, or a current-limited 3.3V output from a microcontroller (such as Arduino) works perfectly. Always use a current-limiting resistor when connecting to higher voltage sources.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Do these 3mm RGB flash LED diodes require an external controller to change colors?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No! Each LED contains a built-in integrated circuit that automatically cycles through red, green, and blue colors. Simply connect them to a compatible power supply (2.0–3.4V) and they flash on their own — no external controller, driver, or microcontroller needed.\"}}, {\"@type\": \"Question\", \"name\": \"What is the difference between the fast flash and slow flash versions?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The fast flash version rapidly strobes through the RGB color sequence, creating a lively and energetic lighting effect — great for party lighting, bar décor, or dynamic signage. The slow flash version transitions smoothly and gradually between colors, lending a calmer, more atmospheric glow suitable for ambient decoration or landscape lighting.\"}}, {\"@type\": \"Question\", \"name\": \"Can these LEDs be used outdoors?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. 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