4pcs 5mm Led White Clear

🔹 4PCS 5mm White LED – Clear Lens

A pack of four bright 5mm white LEDs with a clear lens and clear epoxy bead. These LEDs produce a focused, high-intensity beam with a narrow viewing angle, making them ideal for task lighting, spot illumination, flashlights, and decorative lighting projects.

✅ Specifications:

• Color: White (Cool White / Pure White, typically 6000K-7000K)

• Lens Size: 5mm (T-1 3/4)

• Lens Type: Clear, Water-Clear Bead

• Forward Voltage (Vf): 3.0V – 3.4V (Typical for White/Blue LEDs)

• Forward Current (If): 20mA (Standard operating current)

• Maximum Continuous Forward Current: 30mA

• Luminous Intensity: High (Varies widely; typical range 10,000 – 25,000 mcd)

• Viewing Angle: Narrow (~15° – 30°) due to clear lens and focused die

• Leg Type: Axial Leads

• Cathode Identification: Shorter lead and flat side on the lens rim

• Quantity: 4 pieces

⚙️ Key Features:

• High Brightness: Clear lens design maximizes light output and intensity in a focused beam.

• Focused Beam: Narrow viewing angle creates a spotlight effect, perfect for illumination.

• Standard 5mm Size: Universally compatible with LED holders, panels, and prototyping boards.

• Clear Epoxy Bead: Allows the internal semiconductor die to be visible. Provides no diffusion.

• Long Lifespan: Solid-state reliability with typical lifespans exceeding 50,000 hours.

📦 Typical Applications:

• Task & Spot Lighting: In flashlights, book lights, microscope illumination, and instrument panels.

• DIY Lighting Projects: As bright light sources for custom lamps, displays, and art installations.

• Indicators (High-Visibility): Where a very bright, focused status light is needed.

• Backlighting: For signs, small LCDs, or switches requiring a bright, direct light source.

• Electronics Prototyping: For Arduino, Raspberry Pi, and other microcontroller projects requiring a bright white light source.

🔧 Usage & Wiring Guide:

1. Current-Limiting Resistor is MANDATORY.

2. Polarity Identification:

   • Cathode (-): Shorter lead. Flat side on the circular rim of the LED lens.

   • Anode (+): Longer lead.

3. Resistor Calculation: R=(Vsupply−Vf)/IfR=(Vsupply​−Vf​)/If​

   • Example for 5V Supply: Using Vf=3.2VVf​=3.2V and If=20mAIf​=20mA:
     R=(5V−3.2V)/0.020A=90ΩR=(5V−3.2V)/0.020A=90Ω. A 100Ω – 150Ω resistor is a safe, standard choice.

   • Example for 12V Supply: R=(12V−3.2V)/0.020A=440ΩR=(12V−3.2V)/0.020A=440Ω. A 470Ω resistor is a good choice.

4. Soldering: Use a low-wattage iron and avoid prolonged heat on the leads.

⚠️ Important Notes & Warnings:

• High Intensity: Do not look directly into the LED at close range, especially when powered.

• Polarity Sensitive: Will not light if installed backwards.

• Voltage Check: White LEDs require a higher forward voltage (~3V+) than red or green LEDs (~2V). Ensure your power supply is adequate.

• Heat Management: When driven at or near maximum current (30mA), the LED can become warm. Provide adequate ventilation if used in enclosed fixtures.

• No Built-in Resistor: These are raw LEDs. You must always use an external series resistor.