1. Introduction
This manual provides essential information for the safe installation, operation, and maintenance of your Satco S8355 42-Watt GX24q-3 Base T4 Compact Fluorescent Lamp (CFL). Please read these instructions thoroughly before use and retain them for future reference.

Image 1.1: The Satco S8355 Compact Fluorescent Lamp. This image displays the T4 triple tube design and the GX24q-3 4-pin base of the lamp.
2. Safety Information
- WARNING: Risk of electric shock. Always turn off power to the fixture at the circuit breaker or fuse box before installation, removal, or inspection.
- Do not use this lamp in fixtures not designed for CFLs or with incompatible ballasts. This lamp is designed for electronic and dimming ballasts.
- Do not use where directly exposed to water. Suitable for dry locations unless protected by a fixture.
- Handle the lamp by its plastic base, not the glass tubes, to prevent breakage.
- If the lamp breaks, ventilate the room for 15 minutes. Carefully collect all broken pieces using stiff paper or cardboard. Do not use a vacuum cleaner. Place fragments in a sealed plastic bag and dispose of according to local regulations for mercury-containing products.
- This lamp contains a small amount of mercury. Follow local disposal guidelines.
3. Product Features
The Satco S8355 is a high-performance compact fluorescent lamp designed for various lighting applications. Key features include:
- Wattage: 42 Watts
- Base Type: GX24q-3 (4-Pin)
- Bulb Shape: T4 Triple Tube
- Color Temperature: 3500 Kelvin (Neutral White)
- Color Rendering Index (CRI): 82
- Brightness: 3200 Lumens
- Average Rated Hours: 12,000 hours
- Compatibility: Designed for use with electronic and dimming ballasts.
- Energy Efficient: Provides significant energy savings compared to incandescent equivalents.
4. Setup and Installation
- Turn Off Power: Before attempting any installation, ensure the power to the light fixture is completely turned off at the circuit breaker or fuse box.
- Remove Old Lamp (if applicable): If replacing an existing lamp, allow it to cool completely. Gently twist and pull the old lamp straight out from its base. Do not force it.
- Inspect Fixture: Verify that the fixture is compatible with a GX24q-3 (4-pin) base and an appropriate electronic or dimming ballast.
- Install New Lamp: Align the four pins on the base of the Satco S8355 lamp with the corresponding slots in the fixture's socket. Gently push the lamp straight into the socket until it is firmly seated. Do not twist the lamp during insertion, as this can damage the pins.
- Restore Power: Once the lamp 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.
Note: If the lamp does not light or flickers, ensure it is fully seated in the socket and that the power supply is active. Consult the troubleshooting section if issues persist.
5. Operation
The Satco S8355 lamp operates like a standard light bulb once installed in a compatible fixture. Simply use the wall switch or fixture control to turn the light on or off.
- Warm-up Time: Compact fluorescent lamps may require a short warm-up period (typically a few seconds to a minute) to reach full brightness, especially in colder environments.
- Dimming: This lamp is compatible with appropriate dimming ballasts. Ensure your fixture and dimmer switch are designed for dimmable CFLs. Using a non-dimmable CFL with a dimmer switch can cause damage to the lamp or ballast and may void the warranty.
6. Maintenance
- Cleaning: Ensure the power is off and the lamp is cool before cleaning. Gently wipe the glass tubes with a soft, dry, lint-free cloth. Do not use liquid cleaners or abrasive materials, as these can damage the lamp.
- Replacement: When the lamp reaches the end of its life (average rated hours of 12,000), it will typically flicker or fail to light. Follow the installation steps in Section 4 to replace the lamp. Remember to dispose of the old lamp responsibly according to local regulations.
7. Troubleshooting
If you encounter issues with your Satco S8355 lamp, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Lamp does not light. |
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| Lamp flickers. |
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| Reduced brightness. |
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8. Specifications
| Brand | Satco |
| Model Number | S8355 |
| Light Type | Compact Fluorescent Light (CFL) |
| Wattage | 42 Watts |
| Incandescent Equivalent Wattage | 150 Watts (approximate, based on product title) |
| Bulb Shape Size | T4 Triple Tube |
| Base Type | GX24q-3 (4-Pin) |
| Color Temperature | 3500 Kelvin (Neutral White) |
| Brightness | 3200 Lumens |
| Color Rendering Index (CRI) | 82 |
| Average Rated Hours | 12,000 hours |
| Voltage | 120 Volts |
| Product Dimensions | 1.38 x 1.81 x 6.77 inches |
| Item Weight | 0.16 ounces |
| Special Feature | Energy Efficient |
9. Warranty and Support
Warranty: This Satco S8355 lamp comes with a 2-year limited warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage resulting from improper installation, misuse, abuse, or acts of nature. Please retain your proof of purchase for warranty claims.
Customer Support: For technical assistance, warranty claims, or further information, please contact Satco customer service. Visit the official Satco website for contact details and additional product resources.
Please note that product specifications and warranty terms are subject to change without notice.





