1. Introduction
This manual provides essential information for the safe and effective use of your Philips PL-L 24W/30 Compact Fluorescent Linear Twin Tube Light Bulb. Please read these instructions carefully before installation and retain them for future reference.
2. Safety Information
- Power Disconnection: Always ensure the power supply to the fixture is turned off at the circuit breaker or fuse box before installing, removing, or cleaning the bulb.
- Handle with Care: Fluorescent bulbs contain a small amount of mercury. Handle with care to avoid breakage. In case of breakage, follow local guidelines for cleanup and disposal.
- Correct Fixture: Use this bulb only in fixtures designed for PL-L type compact fluorescent lamps with a 2G11 base and appropriate wattage (24W).
- Avoid Contact: Do not touch the glass portion of the bulb with bare hands during installation. Oils from skin can reduce bulb life. Use a clean cloth or gloves.
- Disposal: Dispose of used bulbs according to local regulations for fluorescent lamps. Many communities have recycling programs.
3. Product Overview

Figure 1: Philips PL-L 24W/30 Light Bulb
This image displays the Philips PL-L 24W/30 compact fluorescent linear twin tube light bulb. It features two parallel fluorescent tubes connected at one end to a 2G11 base with four pins. The bulb is white and elongated, designed for specific fixtures requiring this type of compact fluorescent lamp.
Key Features:
- Single Twin Tube design with a 2G11 base.
- Emits a soft white light (3000K color temperature).
- Estimated operational life of 11.1 years based on 3 hours of daily use.
4. Setup and Installation
- Turn Off Power: Locate the circuit breaker or fuse controlling the light fixture and turn off the power. Verify the power is off by attempting to turn on the light switch.
- Remove Old Bulb (if applicable): If replacing an existing bulb, allow it to cool completely. Carefully grasp the base of the old bulb and pull it straight out from the fixture. Do not twist the glass tubes.
- Insert New Bulb: Align the four pins on the 2G11 base of the new Philips PL-L 24W/30 bulb with the corresponding slots in the fixture's socket. Gently push the bulb straight into the socket until it is firmly seated. Do not force the bulb.
- Restore Power: Once the bulb is securely installed, restore power to the fixture at the circuit breaker or fuse box.
- Test: Turn on the light switch to confirm proper operation.
Caution: Ensure the fixture is compatible with a 24W PL-L compact fluorescent bulb with a 2G11 base. Using an incompatible bulb may cause damage or fire hazard.
5. Operation
The Philips PL-L 24W/30 light bulb operates by simply turning on the light switch connected to its fixture. No special operating procedures are required beyond standard light switch functionality.
6. Maintenance
- Cleaning: To clean the bulb, ensure the power is off and the bulb is cool. Wipe gently with a soft, dry, lint-free cloth. Do not use liquid cleaners or abrasive materials.
- Replacement: Replace the bulb when it reaches the end of its operational life or if it fails prematurely. Follow the installation steps outlined in Section 4 for replacement.
7. Troubleshooting
Bulb Does Not Light Up:
- Check Power: Ensure the power supply to the fixture is on at the circuit breaker and the light switch is in the "on" position.
- Secure Connection: Verify the bulb is fully and correctly seated in the fixture's socket.
- Fixture Compatibility: Confirm that the fixture is designed for a 24W PL-L compact fluorescent bulb with a 2G11 base.
- Ballast Issue: Fluorescent fixtures require a ballast. If the bulb is new and correctly installed but still does not light, the fixture's ballast may be faulty. Consult a qualified electrician.
- Bulb Life: If the bulb has been in use for an extended period, it may have reached the end of its operational life. Replace with a new bulb.
8. Specifications
| Brand | Philips |
| Model Number | 34505-8 |
| Light Type | Compact Fluorescent (CFL) |
| Wattage | 24 Watts |
| Voltage | 120 Volts |
| Base Type | 2G11 (4-pin) |
| Color Temperature | 3000 Kelvin (Warm White) |
| Brightness | 1620 Lumens |
| Shape | Single Twin Tube |
| Color Rendering Index (CRI) | 82.00 |
| Average Life | 11.1 Years (based on 3 hours/day) |
| Indoor/Outdoor Usage | Indoor |
| Special Feature | Energy Efficient |
9. Warranty and Support
For information regarding warranty coverage or technical support for your Philips PL-L 24W/30 light bulb, please refer to the product packaging or contact Philips customer service directly. Contact details can typically be found on the official Philips website or product documentation.
Philips Official Website: www.philips.com