1. Introduction
This manual provides essential information for the safe and effective use of your Philips Alto PL-C 26W Compact Fluorescent Light Bulb. This 1800-lumen, 3500-Kelvin (Daylight) bulb is designed for various indoor applications, including laundry rooms, bathrooms, kitchens, and offices. It features a 4-Pin G24-3 Base and is suitable for use in surface-mounted downlight fixtures and recessed cans. Please read these instructions carefully before installation and operation.
2. Safety Information
Always follow basic safety precautions when installing or replacing light bulbs to reduce the risk of fire, electric shock, or personal injury.
- Power Off: Ensure the power supply to the fixture is turned off at the circuit breaker or fuse box before installation or removal.
- Cool Down: Allow the bulb to cool completely before handling.
- Proper Fixture: Use only in fixtures designed for compact fluorescent bulbs with a G24-3 base and appropriate wattage.
- Dry Location: This bulb is intended for indoor use only. Do not expose to water or use in wet locations unless the fixture is specifically rated for such conditions.
- Handle with Care: Fluorescent bulbs contain a small amount of mercury. Handle with care and dispose of according to local regulations. Do not break the bulb.
- Do Not Dim: This bulb is not designed for use with dimmers unless explicitly stated on the packaging or bulb itself. Using it with a dimmer may damage the bulb or the dimmer.
3. Setup and Installation
Follow these steps to properly install your Philips Alto PL-C 26W bulb:
- Verify Compatibility: Confirm that your light fixture is designed for a 4-Pin G24-3 base compact fluorescent bulb and can support a 26-watt bulb.
- Turn Off Power: Before beginning, ensure the power to the light fixture is completely off at the main circuit breaker.
- Remove Old Bulb (if applicable): If replacing an existing bulb, allow it to cool. Gently grasp the old bulb and pull it straight out from the socket. Do not twist.
- Insert New Bulb: Align the 4 pins of the new Philips Alto PL-C bulb with the slots in the G24-3 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.
- Test: Turn on the light switch to confirm proper operation.
Image 1: Philips Alto PL-C 26W Compact Fluorescent Light Bulb. This image shows the overall appearance of the bulb, highlighting its triple-tube design and 4-pin base.
Image 2: Dimensions of the Philips Alto PL-C 26W Compact Fluorescent Light Bulb. This image illustrates the bulb's length, approximately 6.7 inches (16 cm), which is crucial for ensuring it fits into compatible fixtures.
4. Operating Instructions
The Philips Alto PL-C 26W bulb operates like a standard light bulb once installed correctly.
- Turning On/Off: Use the wall switch or fixture switch connected to the light circuit to turn the bulb on or off.
- Warm-up Time: Fluorescent bulbs may require a short warm-up period to reach full brightness, especially in colder environments.
- Intended Use: This bulb is suitable for general illumination in indoor residential and commercial settings.
5. Maintenance
Minimal maintenance is required for your Philips Alto PL-C bulb.
- Cleaning: Ensure the power is off and the bulb is cool. Gently wipe the bulb with a soft, dry cloth to remove dust. Do not use liquid cleaners.
- Replacement: The average life of this bulb is 10,000 hours. Replace the bulb when it reaches the end of its useful life or if it flickers excessively. Follow the installation steps for replacement.
- Disposal: Due to the mercury content, dispose of the bulb according to local hazardous waste regulations. Many retailers and municipalities offer recycling programs for fluorescent bulbs.
6. Troubleshooting
If your Philips Alto PL-C bulb is not functioning as expected, consider the following:
- Bulb Not Lighting:
- Check if the power switch is on.
- Ensure the bulb is fully and correctly seated in the socket.
- Verify that the circuit breaker has not tripped.
- Test the fixture with a known working bulb to rule out a fixture issue.
- The bulb may have reached the end of its life and needs replacement.
- Flickering:
- Flickering can occur if the bulb is nearing the end of its life.
- Ensure the bulb is not used with an incompatible dimmer switch.
- Check for loose connections in the fixture.
- Dim Light:
- Ensure the bulb is clean and free of dust.
- Verify the fixture is providing adequate power.
- The bulb may be old and losing brightness; consider replacement.
7. Specifications
| Brand | Philips LED |
| Model Name | Philips-PL-C 26W/35 4P (Model 383364) |
| Light Type | Compact Fluorescent Light (CFL) |
| Wattage | 26 Watts |
| Brightness | 1800 Lumens |
| Color Temperature | 3500 Kelvin (Daylight White) |
| Bulb Base | 4-Pin G24-3 |
| Voltage | 105V - 120 Volts |
| Average Life | 10,000 Hours |
| Indoor/Outdoor Usage | Indoor use only |
| Product Dimensions | 1.1"W x 1.36"H (Bulb Diameter: 1.1 Inches) |
| Item Weight | 2.39 ounces (0.07 Kilograms) |
| Color Rendering Index (CRI) | 82 |
8. Warranty and Support
This Philips Alto PL-C 26W Compact Fluorescent Light Bulb is covered by a 2-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
For warranty claims, technical support, or further assistance, please contact Philips customer service. Keep your proof of purchase for warranty validation.
Manufacturer: Signify North America Corporation (Philips LED)





