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Pricelist: Retail Price (B2C) Pricelist
5mm RGB LED 2-Pin Self-Flashing Rainbow Multi-Colour Cycle (Pack of 5)

5mm RGB LED 2-Pin Self-Flashing Rainbow Multi-Colour Cycle (Pack of 5)

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ComponentSpecification
LED TypeStandard DIP (Through-Hole)
Diameter5mm
Color EffectRGB Multi-Color Auto-Flashing
Lens AppearanceWater Clear (Transparent)
Forward Voltage (Vf)3.0V – 3.4V
Forward Current (If)20mA
Pin Count2 Pins (Positive/Negative)
Cycling ModeRapid/Slow Auto-Cycle (Slow Fade to Fast Flash)
Price
₹ 12.71 ₹ 12.71
(Tax included)

Product Description The 5mm 2-Pin RGB Auto-Flashing LED is a smart, integrated light source that brings dynamic color effects to your projects without the need for complex programming. Unlike standard 4-pin RGB LEDs that require a microcontroller to change colors, this LED has a built-in integrated circuit (IC) that automatically cycles through a rainbow of colors as soon as power is applied. With a water-clear lens, it produces sharp, vibrant colors that transition from a smooth slow fade to a high-energy rapid flash. It is the easiest way to add decorative lighting, "party modes," or eye-catching status signals to any robot or electronic prototype.

Key Features

  • Self-Contained IC: No external controllers or code required; simply apply DC voltage to start the color cycle.

  • Easy 2-Pin Setup: Designed like a standard single-color LED, making it a drop-in replacement for boring indicators.

  • Vibrant Multi-Color Output: Cycles through Red, Green, Blue, and all blended colors (Purple, Cyan, Yellow, White).

  • High Intensity: The water-clear lens allows for maximum light transmission and sharp "point source" brilliance.

  • Universal 5mm Size: Fits standard breadboards, perf-boards, and all 5mm LED mounting clips.

Technical Details

  • Anode (+): Longer Lead

  • Cathode (-): Shorter Lead (Flat edge on the LED base)

  • Operating Temperature: -25°C to +85°C

  • Soldering Temp: 260°C for less than 5 seconds

Prototyping and Engineering Tips from Robogears

  • The "Zero-Code" Solution: This is the ultimate "shortcut" for adding color. If you want your robot to have flashing multi-color eyes but don't want to use up your Arduino’s PWM pins, simply connect these to your 5V rail with a resistor.

  • Voltage Selection: These LEDs operate between 3.0V and 3.4V.

    • When using an Arduino (5V), use a 150Ω to 220Ω resistor.

    • When using a 3.7V Lithium-Ion battery, use a 47Ω resistor to handle the voltage when the battery is fully charged.

  • Power Stability Tip: Because the internal IC "clocks" the color changes, you might see tiny fluctuations in current. For a more stable color cycle, ensure your power source is well-decoupled with a small capacitor if you are using many of these in parallel.

  • Parallel Wiring: You can wire multiple auto-flashing LEDs in parallel (each with its own resistor). Since each LED has its own internal clock, they will eventually drift out of sync, creating a beautiful, randomized "glimmering" light effect.

Package Includes

  • 5 x 5mm 2-Pin RGB Auto-Flashing LEDs

Disclaimer Images are for reference; the specific sequence and speed of the color cycle may vary slightly between manufacturing batches. DO NOT connect directly to a power source without a current-limiting resistor.