Introduction
The Philips LED 60W A21 Battery Backup Light Bulb is designed to provide reliable illumination even during power outages. Featuring a rechargeable lithium-ion battery, this bulb can illuminate for up to 3 hours when the power goes out. It can be used in a standard fixture or removed and used as a portable light source. This manual will guide you through the proper use and care of your new Philips LED bulb.
Setup
Follow these steps to properly set up your Philips LED Battery Backup Light Bulb:
- Unpack the Bulb: Carefully remove the bulb from its packaging. Inspect for any visible damage.
- Install in Fixture: Screw the bulb into a standard E26 medium base light fixture. Ensure the fixture is powered on for the bulb to charge.
- Initial Charge: Allow the bulb to remain in a powered-on fixture for at least 6-8 hours to ensure the internal battery is fully charged before its first use as a backup light. The bulb recharges automatically when the fixture is powered on.

Image: Four Philips LED A21 Battery Backup Light Bulbs, showing the product and its packaging.

Image: Key features of the Philips LED Battery Backup Bulb, highlighting its rechargeable battery, 3-hour backup power, and EyeComfort technology.
Operating Instructions
Your Philips LED Battery Backup Light Bulb operates in two primary modes:
- Normal Operation: When installed in a powered fixture, the bulb functions as a regular LED light bulb, providing 800 lumens of soft white (2700K) light. During this time, its internal battery is continuously charging.
- Battery Backup Mode: In the event of a power outage, the bulb will automatically switch to battery backup mode, providing up to 3 hours of illumination. The bulb will remain lit as long as the fixture switch is in the 'ON' position.
- Portable Use: For use as a portable light source, simply unscrew the bulb from its fixture during a power outage. The bulb will remain lit, allowing you to carry it like a flashlight.

Image: The Philips EyeComfort feature ensures comfortable lighting for your eyes during normal operation.

Image: The bulb continues to provide light even when the power is off, thanks to its battery backup.
Maintenance
To ensure the longevity and optimal performance of your Philips LED Battery Backup Light Bulb, follow these maintenance guidelines:
- 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.
- Battery Care: For best battery life, ensure the bulb is regularly used in a powered fixture to allow for consistent recharging. Avoid prolonged storage of the bulb without being charged, as this may reduce battery capacity over time.
- Storage: If storing the bulb for an extended period, ensure it is fully charged before storage and recharge it every 3-6 months to maintain battery health.
Troubleshooting
If you encounter issues with your Philips LED Battery Backup Light Bulb, refer to the following common problems and solutions:
- Bulb Not Lighting in Normal Mode:
- Ensure the light fixture is receiving power and the switch is in the 'ON' position.
- Check if the bulb is screwed in securely.
- Test the bulb in a different, known-working fixture.
- Bulb Not Lighting in Battery Backup Mode:
- Ensure the bulb was fully charged prior to the power outage (allow 6-8 hours of initial charge).
- Verify the fixture switch is in the 'ON' position during the power outage.
- The battery may be depleted if it has been used for its full 3-hour duration. Allow it to recharge once power is restored.
- Reduced Battery Backup Time:
- Battery performance can degrade over time with repeated charge/discharge cycles.
- Ensure the bulb is regularly charged by keeping it in a powered fixture.
If problems persist after following these steps, please contact Philips customer support.
Specifications
Key technical specifications for the Philips LED 60W A21 Battery Backup Light Bulb:
| Feature | Specification |
|---|---|
| Brand | Philips LED |
| Light Type | LED |
| Wattage (Equivalent) | 60 watts (8W actual) |
| Bulb Shape Size | A21 |
| Bulb Base | E26 |
| Brightness | 800 Lumen |
| Color Temperature | 2700 Kelvin (Soft White) |
| Voltage | 120 Volts |
| Battery Backup Duration | Up to 3 hours |
| Special Feature | Flicker-Free |
| Model Number | 586859 |

Image: Dimensions and base type of the Philips A21 LED bulb.
Warranty and Support
Warranty: This Philips LED Battery Backup Light Bulb comes with a 2-year manufacturer's warranty. Please retain your proof of purchase for warranty claims.
Support: For further assistance, technical support, or warranty inquiries, please visit the official Philips Lighting website or contact their customer service department. Refer to the product packaging for specific contact details or visit www.philips.com/lighting for more information.