Introduction
This manual provides essential information for the safe and effective use of your Philips 36W 4 Pin 2G11 Warm White Long Single Twin Tube CFL Bulb. Please read these instructions carefully before installation and retain them for future reference.
Safety Information
Observe the following safety precautions to prevent injury or damage:
- Power Off: Always ensure the power supply to the fixture is turned off at the circuit breaker before installing, removing, or cleaning the bulb.
- Handle with Care: Compact Fluorescent Lamps (CFLs) contain a small amount of mercury. Handle with care to avoid breakage. In case of breakage, follow local guidelines for cleanup.
- Correct Base: Ensure the bulb's 2G11 base is compatible with your fixture. Incorrect base types can cause electrical hazards or damage.
- Do Not Dim: This CFL bulb is not designed for use with dimmers unless explicitly stated on the packaging or bulb itself. Using it with a dimmer may shorten its lifespan or cause malfunction.
- Indoor Use: This bulb is intended for indoor use only.
- Disposal: Dispose of used bulbs according to local regulations for fluorescent lamps, which often require special recycling due to mercury content.
Product Overview
The Philips 36W 4 Pin 2G11 Warm White Long Single Twin Tube CFL Bulb is a compact fluorescent lamp designed for energy-efficient lighting. It features a 2G11 base with four pins for secure connection and provides a warm white light suitable for various indoor applications.

Image: A Philips 36W 4 Pin 2G11 Warm White Long Single Twin Tube CFL Bulb, showing its elongated twin tube design and the 4-pin base at one end.
Specifications
| Feature | Specification |
|---|---|
| Brand | PHILIPS |
| Model Number | 34511-6 |
| Light Type | CFL (Compact Fluorescent Lamp) |
| Wattage | 36 Watts |
| Base Type | 2G11 (4-Pin) |
| Color Temperature | 3000 Kelvin (Warm White) |
| Brightness | 2610 Lumens |
| Bulb Length | 16.44 Inches (approximately 16 7/16") |
| Voltage | 120 Volts |
| Shape | Single Twin Tube |
| Material | Copper |
| Estimated Life | 11.1 years (based on 3 hours/day use) |
| Energy Efficiency | 80.56 lumens per watt |
Setup and Installation
Follow these steps to safely install your CFL bulb:
- Turn Off Power: Locate the light fixture's power switch and turn it off. For added safety, turn off the corresponding circuit breaker at your electrical panel.
- Allow Cooling: If replacing an existing bulb, allow it to cool completely before handling.
- Remove Old Bulb (if applicable): Carefully remove the old bulb from the fixture. For 2G11 bases, gently pull the bulb straight out from the socket.
- Insert New Bulb: Align the four pins of the new Philips CFL bulb with the slots in the 2G11 socket. Gently push the bulb straight into the socket until it is firmly seated. Do not twist or force the bulb.
- Restore Power: Turn the circuit breaker back on, then turn on the light switch to test the new bulb.
Operating Instructions
Once installed, the Philips 36W 4 Pin 2G11 CFL Bulb operates like any standard light bulb. Simply use the wall switch or fixture switch to turn the light on or off. Allow a brief warm-up period for the bulb to reach full brightness, especially in cooler environments.
Maintenance
Minimal maintenance is required for this CFL bulb:
- Cleaning: Ensure the power is off and the bulb is cool. Gently wipe the bulb with a soft, dry, lint-free cloth to remove dust. Do not use liquid cleaners.
- Replacement: Replace the bulb when it reaches the end of its operational life or if it becomes damaged. Follow the installation steps in reverse for removal.
Troubleshooting
If your bulb is not functioning correctly, consider the following:
| Problem | Possible Cause | Solution |
|---|---|---|
| Bulb does not light up | No power to fixture; Bulb not seated correctly; Bulb is faulty/expired | Check power switch and circuit breaker; Re-seat the bulb firmly; Replace bulb with a new one |
| Bulb flickers | Loose connection; Incompatible dimmer; Bulb nearing end of life | Ensure bulb is seated firmly; Do not use with dimmers unless specified; Replace bulb |
| Bulb is dim | Insufficient warm-up time; Incorrect voltage; Bulb nearing end of life | Allow a few minutes for full brightness; Verify fixture voltage; Replace bulb |
Warranty and Support
For information regarding warranty coverage or technical support for your Philips CFL bulb, please refer to the original product packaging or visit the official Philips website. Keep your purchase receipt as proof of purchase.





