5mm LED Light Emitting Diodes (3-Pack) - for STEM & DIY Projects

Name: 5mm LED Pack (3 Pcs) | Red, Blue, Yellow, White | Sun Cheong
Brand: Sun Cheong Computer Company Limited
SKU: 21PS000252
Price: 6.0 HKD
Availability: InStock

HK$6.00

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Color White Light Orange Light Blue Light Red Light Yellow Light

Short Product Description

Light up your next electronics project with our premium 5mm LEDs. Available in 5 vibrant colors (Red, Blue, Yellow, White, Orange), these diodes are perfect for Arduino circuits, breadboarding, and repairs. Sold in convenient 3-piece packs—buy only what you need.

Key Features

High Visibility: Bright output with distinct colors ensures your signals are seen clearly.
Standard Compatibility: 5mm diameter fits all standard LED holders, breadboards, and perfboards.
Low Power Consumption: Efficient design helps extend battery life in portable projects.
Durable Leads: Sturdy metal legs (Anode/Cathode) resist bending and make soldering easier.
Convenient Packaging: Sealed 3-pack prevents loss and keeps components organized.

Full Product Description

Illuminate Your Creativity with Reliable Components

Whether you are a student building your first circuit, a hobbyist repairing a vintage device, or a maker designing a custom light display, the quality of your components matters. Our 5mm LEDs are the industry standard for brightness and reliability.

Perfect for STEM and Education

These LEDs are an essential building block for learning electronics. Their standard 5mm size and durable leads make them easy to insert into breadboards or solder onto PCBs. They are fully compatible with popular platforms like Arduino, Raspberry Pi, and Micro:bit.

Versatile Applications

Why buy a bulk bag of 100 when you just need a few? We offer these in convenient packs of 3 pieces, allowing you to mix and match colors for:

Status indicators on control panels.
Model kit lighting (Gundam, trains, cars).
School science experiments.
Emergency flashlights or aesthetic accents.

Available Colors:

Red: Classic indicator or warning light.
Blue: Modern, high-tech aesthetic.
Yellow: Soft signaling or vintage look.
White: High-intensity illumination.
Orange: Unique visibility for specific projects.

Technical Specifications

Component Type: Light Emitting Diode (LED)
Package Size: 5mm (T-1 3/4)
Lens Type: Diffused (Red/Yellow/Orange) or Clear (White/Blue)
Forward Current: 20mA (standard)
Forward Voltage (approx):Red/Yellow/Orange: 1.8V – 2.2VBlue/White: 3.0V – 3.4V
Viewing Angle: 30° – 60° (depends on color)
Quantity: 3 pieces per pack

Delivery Options

Local delivery within Hong Kong and in-store pickup.
Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
In-store pickup details (location and time) will be confirmed by email or phone message.
Delivery times are estimates and may be affected by weather or unforeseen circumstances.

FAQ Section

Q: Do I need a resistor for these LEDs?
A: Yes! To prevent burning out the LED, you should always use a current-limiting resistor. For a standard 5V supply (like Arduino), a 220Ω or 330Ω resistor is usually perfect.

Q: How do I know which leg is positive?
A: The longer leg is the Anode (Positive +), and the shorter leg is the Cathode (Negative -). Also, the flat side of the plastic rim indicates the negative side.

Q: Can I use these for 12V automotive projects?
A: Yes, but you must use a higher value resistor (typically around 470Ω to 1kΩ) to drop the voltage safely. Connecting them directly to 12V will damage them instantly.