1. Introduction
This manual provides essential information for the safe and efficient use of your Maxlite EF10A19D927/JA81 10W A19 Dimmable LED Bulb. This LED bulb is designed as a 75W incandescent equivalent, delivering 1100 lumens of 2700K warm white light with a high CRI of 90. It features a clear filament design and is suitable for enclosed fixtures and wet locations. Please read these instructions thoroughly before installation and operation.
2. Safety Information
- Risk of Electric Shock: Always disconnect power to the fixture before installing, removing, or servicing the bulb.
- Risk of Burns: Allow the bulb to cool completely before handling.
- Do not use with incompatible dimmers. This bulb is designed for TRIAC dimmers.
- Do not disassemble or modify the bulb. There are no user-serviceable parts inside.
- Ensure the bulb is securely screwed into the fixture to prevent accidental dislodgement.
- Dispose of bulbs according to local regulations.
3. Installation
- Ensure the power supply to the light fixture is turned off at the circuit breaker or wall switch.
- Carefully remove the old bulb from the fixture.
- Unpack the Maxlite EF10A19D927/JA81 LED bulb.
- Screw the new LED bulb clockwise into the standard E26 medium screw base socket until it is finger-tight. Do not overtighten.
- Restore power to the fixture.
This bulb is suitable for use in enclosed luminaires and wet locations, offering versatile installation options.

Image: Maxlite EF10A19D927/JA81 LED bulb, unlit, displaying its clear glass and internal filaments with an E26 screw base, ready for installation.
4. Operating Instructions
Once installed and power is restored, the Maxlite EF10A19D927/JA81 LED bulb operates like a standard light bulb.
- Turning On/Off: Use the wall switch connected to the fixture to turn the light on or off.
- Dimming Functionality: This bulb is dimmable from 10% to 100% when used with a compatible TRIAC dimmer switch. Adjust the dimmer control to achieve your desired light level. Ensure your dimmer is rated for LED bulbs.
- Light Output: The bulb provides 1100 lumens of 2700 Kelvin (warm white) light, suitable for creating a comfortable ambiance.

Image: Maxlite EF10A19D927/JA81 LED bulb, illuminated, set against a dark background, highlighting its warm white light output and clear filament design.
5. Maintenance
The Maxlite EF10A19D927/JA81 LED bulb requires minimal maintenance.
- Cleaning: Ensure the power is off and the bulb is cool. Wipe the bulb with a soft, dry cloth. Do not use liquid cleaners or abrasive materials.
- No User-Serviceable Parts: Do not attempt to open or repair the bulb. Any attempt to do so will void the warranty.
- Lifespan: This LED bulb has an estimated lifespan of 15,000 hours under normal operating conditions, significantly reducing the need for frequent replacement.
6. Troubleshooting
If you encounter issues with your LED bulb, refer to the following common troubleshooting steps:
- Bulb Does Not Light:
- Check that the power supply to the fixture is on.
- Ensure the bulb is securely screwed into the socket.
- Test the bulb in another working fixture to confirm if the issue is with the bulb or the fixture.
- Bulb Flickers or Dims Inconsistently:
- Verify that your dimmer switch is compatible with LED bulbs and specifically with TRIAC dimming technology.
- Ensure the bulb is securely connected in the socket.
- Check for any loose wiring in the light fixture or switch.
- Reduced Brightness:
- If using a dimmer, ensure it is set to the maximum brightness level.
- Confirm the voltage supplied to the fixture is within the bulb's operating range (120 Volts).
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Maxlite |
| Model Name | LED Clear Filament A19 Bulb |
| Part Number | EF10A19D927/JA81 |
| Light Type | LED |
| Wattage | 10 watts |
| Incandescent Equivalent | 75 Watts |
| Brightness | 1100 Lumens |
| Color Temperature | 2700 Kelvin (Warm White) |
| Color Rendering Index (CRI) | 90 |
| Bulb Shape Size | A19 |
| Bulb Base | E26 (Medium) |
| Dimmable | Yes (TRIAC dimming 10-100%) |
| Lifespan | 15,000 hours |
| Voltage | 120 Volts |
| Material | Glass |
| Indoor/Outdoor Usage | Indoor (Suitable for wet locations) |
| Special Features | Dimmable, Energy Efficient, High Efficiency, Long Lasting, JA8 Listed |
| Certifications | cETLus, RoHS, FCC Compliant |
| UPC | 767627052583 |

Image: Packaging for Maxlite LED bulb, displaying the 'Lighting Facts' label which details brightness (1100 lumens), estimated yearly energy cost ($1.20), life (13.7 years), and light appearance (2700K Warm).
8. Warranty Information
This Maxlite EF10A19D927/JA81 LED bulb is backed by a 3-year manufacturer warranty. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims. For specific terms and conditions, refer to the official Maxlite warranty policy or contact customer support.
9. Support
For further assistance, technical support, or warranty inquiries, please contact Maxlite customer service:
- Phone: 1-800-555-5629 (Referenced for California residents regarding T24 compliance, but can be used for general support.)
- Website: www.maxlite.com





