Introduction
This instruction manual provides important information for the safe and efficient use of your Philips T8 18" SW 15W Fluorescent Bulb. Please read this manual thoroughly before installation and retain it for future reference.
The Philips T8 18" SW 15W Fluorescent Bulb is designed for energy-efficient lighting, offering bright illumination with minimal power consumption. Its compact 18-inch size makes it suitable for fixtures with limited space. Featuring instant start technology, it provides immediate light without warm-up time. The bulb also boasts a high Color Rendering Index (CRI) for accurate color representation and a prolonged lifespan, reducing replacement frequency.
Safety Information
WARNING: Before installing or replacing the bulb, ensure the power supply to the fixture is turned off at the circuit breaker or fuse box to prevent electric shock.
- Do not use this bulb in dimmable fixtures unless explicitly stated as compatible.
- Handle fluorescent bulbs with care. They contain a small amount of mercury. In case of breakage, ventilate the area and clean up carefully according to local regulations.
- Ensure the bulb is securely seated in the fixture's lampholders.
- Do not exceed the maximum wattage rating of your fixture. This bulb is 15W.
- This bulb is designed for indoor use only.
- Keep out of reach of children.
Setup and Installation
- Turn off Power: Before beginning, switch off the power to the light fixture at the circuit breaker or fuse box.
- Remove Old Bulb (if applicable): Carefully twist the old fluorescent bulb to align its pins with the slots in the lampholders, then gently pull it out. Dispose of old bulbs responsibly.
- Insert New Bulb: Align the pins of the Philips T8 18" SW 15W Fluorescent Bulb with the slots in the lampholders. Gently push the bulb into the lampholders and twist it until it locks securely into place. Ensure both ends are firmly seated.
- 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 the bulb is functioning correctly.

Image: Philips T8 18 inch Fluorescent Bulb. This image shows the cylindrical shape and pin connectors typical of a T8 fluorescent tube, ready for installation into a compatible fixture.
Operating Instructions
The Philips T8 18" SW 15W Fluorescent Bulb operates by simply turning on the light switch connected to its fixture. Thanks to its instant start technology, the bulb will illuminate immediately without any warm-up period.
This bulb provides a soft white light, suitable for general purpose indoor lighting applications.
Maintenance
Cleaning
To clean the bulb, ensure the power is turned off and the bulb is cool to the touch. Gently wipe the bulb with a soft, dry, lint-free cloth. Do not use liquid cleaners or abrasive materials, as these can damage the bulb or its coating.
Replacement
When the bulb reaches the end of its lifespan or fails, follow the "Setup and Installation" steps in reverse to safely remove the old bulb and install a new one. Always ensure the power is off before handling the bulb.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Bulb does not light up. | No power to the fixture; Bulb not seated correctly; Faulty bulb; Faulty fixture/ballast. | Check circuit breaker. Ensure bulb is firmly seated. Replace bulb with a known good one. Consult an electrician if fixture is suspected. |
| Bulb flickers. | Loose connection; Cold temperature; Aging bulb; Incompatible ballast. | Ensure bulb is firmly seated. Allow bulb to warm up. Replace bulb. Ensure ballast is compatible with T8 fluorescent bulbs. |
| Reduced brightness. | Aging bulb; Dust/dirt on bulb or fixture. | Replace bulb. Clean bulb and fixture. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Philips |
| Model Name | Bulb FLR T8 18" SW 15W |
| Light Type | Fluorescent |
| Wattage | 15 Watts |
| Bulb Shape Size | T8 |
| Bulb Base | G5 |
| Brightness | 1000 Lumens |
| Light Color | Soft White (3000 Kelvin) |
| Color Rendering Index (CRI) | 85 |
| Voltage | 120 Volts |
| Product Dimensions | 1.14"W x 1.1"H (Diameter x Length) |
| Indoor/Outdoor Usage | Indoor |
| Item Weight | 2.24 ounces |
Warranty Information
This Philips product is covered by a manufacturer's warranty. For specific details regarding the warranty period and terms, please refer to the packaging or contact Philips customer support. Retain your proof of purchase for warranty claims.
Customer Support
For technical assistance, troubleshooting, or warranty inquiries, please visit the official Philips website or contact their customer service department. Contact information can typically be found on the product packaging or the Philips brand website.
You can also visit the Philips Store on Amazon for more product information.