KOR K21471
KOR K21471 LED PAR38/FL Light Bulb Instruction Manual
Model: K21471
Introduction
Thank you for choosing the KOR K21471 LED PAR38/FL Light Bulbs. These 18-watt LED bulbs are designed to be a highly energy-efficient replacement for traditional 100-watt PAR38 incandescent or halogen floodlights, providing 1400 lumens of soft white (3000K) light. They are suitable for both indoor and outdoor applications, including track lighting, recessed cans, and outdoor flood light fixtures. This manual provides essential information for the safe and effective use of your new LED bulbs.
Safety Information
- WARNING: Risk of electric shock. Disconnect power before installation or servicing.
- Do not use with dimmers unless explicitly stated as dimmable. This product is dimmable.
- Do not use in totally enclosed fixtures unless the fixture is designed for LED bulbs.
- Not for use in emergency exit fixtures or emergency lights.
- Ensure the bulb is securely screwed into the socket.
- Do not disassemble or modify the bulb.
- Avoid direct eye exposure to the light source when illuminated.
- Dispose of bulbs according to local regulations.
Setup and Installation
The KOR K21471 LED PAR38/FL bulbs feature a standard E26 medium screw base, making them compatible with most household fixtures.
- Turn off power: Before replacing any bulb, ensure the power to the fixture is turned off at the circuit breaker or wall switch.
- Allow old bulb to cool: If replacing an incandescent or halogen bulb, allow it to cool completely before handling to prevent burns.
- Remove old bulb: Carefully unscrew the old bulb counter-clockwise from the fixture.
- Install new bulb: Gently screw the KOR K21471 LED PAR38/FL bulb clockwise into the E26 base socket until it is snug. Do not overtighten.
- Restore power: Turn the power back on at the circuit breaker or wall switch.

Image: The E26 medium screw base, a standard household base, is shown with its dimensions (1.02 inches / 26 mm diameter).

Image: Dimensional diagram of the KOR PAR38 LED bulb, indicating a diameter of 4.80 inches and a height of 5.2 inches.
Operating Instructions
Once installed, the KOR K21471 LED PAR38/FL bulbs operate like standard light bulbs.
- Power On/Off: Use the existing wall switch or fixture control to turn the light on or off.
- Dimming: These bulbs are dimmable. For optimal performance, use with compatible LED dimmers. Refer to your dimmer's instructions for proper operation.
- Instant On: The bulbs provide instant full brightness with no warm-up time.

Image: A pair of KOR K21471 LED PAR38/FL light bulbs, highlighting their reflector shape and textured lens.

Image: An example of the KOR LED PAR38 bulbs used for outdoor lighting, illuminating the front of a house at night.
Maintenance
KOR LED bulbs require minimal maintenance.
- Cleaning: Ensure the bulb is cool and the power is off before cleaning. Wipe the bulb with a soft, dry cloth. Do not use liquid or abrasive cleaners.
- Replacement: These LED bulbs have a long lifespan. Replace only when the light output significantly diminishes or the bulb ceases to function.
Troubleshooting
If your KOR LED bulb is not functioning as expected, consider the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Bulb does not light up. | No power to the fixture. Bulb not screwed in properly. Bulb is faulty. | Check circuit breaker and wall switch. Ensure bulb is securely tightened. Test bulb in a known working fixture. If still not working, replace the bulb. |
| Bulb flickers or dims unexpectedly. | Incompatible dimmer switch. Loose connection. Overheating. | Ensure dimmer is compatible with LED bulbs. Tighten bulb in socket. Ensure fixture provides adequate ventilation; do not use in fully enclosed fixtures unless specified. |
| Light output is too low. | Incorrect bulb type for application. Dimmer setting too low. | Verify the bulb's lumen output meets your needs. Adjust dimmer to a higher setting. |
Specifications
| Feature | Specification |
|---|---|
| Model Number | K21471 |
| Brand | KOR |
| Light Type | LED (replaces Halogen) |
| Wattage | 18 Watts |
| Incandescent Equivalent | 100 Watts |
| Brightness | 1400 Lumens |
| Color Temperature | 3000 Kelvin (Soft White) |
| Bulb Shape Size | PAR38 |
| Bulb Base | E26 Medium Screw Base |
| Voltage | 120 Volts |
| Special Features | Dimmable, UL Listed, Instant On, CRI 80+ |
| Indoor/Outdoor Usage | Yes |
| Product Dimensions | 4.75"W x 5.31"H |
| Item Weight | 1.25 pounds (for the pack of 2) |
| Unit Count | 2 Count |
| UPC | 817300021471 |
Warranty and Support
KOR K21471 LED PAR38/FL bulbs come with a manufacturer's warranty. For specific warranty terms and conditions, please refer to the product packaging or contact KOR customer support directly.
For technical assistance or further inquiries, please visit the official KOR website or contact their customer service department. Keep your purchase receipt for warranty claims.
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