1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Sunlite F21T5/835 3-Foot T5 Linear Fluorescent Lamp. This high-performance lamp offers 1900 lumens of brightness with a 21-watt power consumption, providing a 3500K neutral white light. Designed for longevity, it features an average lifespan of 20,000 hours and is RoHS compliant.
Please read this manual thoroughly before installation and retain it for future reference.
Figure 1.1: Sunlite F21T5/835 Linear Fluorescent Lamps. This image displays the overall appearance of the product, showing multiple lamps.
2. Safety Information
Always observe the following safety precautions to prevent injury or damage to the product:
- Power Disconnection: Always ensure the power supply to the fixture is turned OFF at the circuit breaker before installing, removing, or performing any maintenance on the lamp.
- Proper Handling: Fluorescent lamps contain small amounts of mercury. Handle with care. Do not drop or break the lamp.
- Compatibility: Ensure the lamp's specifications (wattage, voltage, base type) match the fixture's requirements. This lamp uses a Miniature G5 Bi-Pin Base.
- Disposal: Dispose of used or broken fluorescent lamps according to local regulations. Do not dispose of in regular household waste.
- Indoor Use Only: This product is designed for indoor use.
- Avoid Contact: Do not touch the lamp with wet hands or when standing on a wet surface.
3. Setup and Installation
Follow these steps for safe and correct installation of your T5 linear fluorescent lamp:
- Turn Off Power: Locate the circuit breaker controlling the lighting fixture and switch it to the OFF position. Verify that the power is off before proceeding.
- Prepare Fixture: If replacing an existing lamp, carefully remove the old lamp from the fixture. Allow it to cool if it was recently in use.
- Insert New Lamp: Align the two pins on each end of the Sunlite F21T5/835 lamp with the sockets in the fixture. Gently push the lamp into the sockets until it is securely seated. Do not force the lamp.
- Secure Lamp: Ensure the lamp is firmly held by the fixture's spring-loaded sockets.
- Restore Power: Once the lamp is securely installed, return to the circuit breaker and switch the power back ON.
- Test: Turn on the light switch to confirm the lamp is functioning correctly.
Figure 3.1: Lamp Dimensions and G5 Bi-Pin Base. This image illustrates the physical dimensions of the 3-foot T5 linear fluorescent lamp, showing its 34-inch length and 0.63-inch diameter, along with a close-up of the miniature G5 bi-pin base.
4. Operating Instructions
The Sunlite F21T5/835 lamp operates immediately upon receiving power from a compatible fixture. Simply use the wall switch or fixture control to turn the light on or off.
- Light Output: Provides 1900 lumens of light.
- Color Temperature: Emits a 3500K neutral white light, suitable for creating a balanced and comfortable ambiance in various indoor settings.
- Energy Efficiency: Consumes 21 watts of power, offering an energy-efficient lighting solution.
Figure 4.1: Key Lamp Features. This infographic details the lamp's 3500K neutral white color, 20,000-hour lifespan, Color Rendering Index (CRI) of 82, and its cost-efficient nature.
Figure 4.2: Light Color Temperature Guide. This chart visually explains various light color temperatures, categorizing them from warm to cool, and highlights the 3500K neutral white output of this lamp.
5. Maintenance
The Sunlite F21T5/835 lamp is designed for minimal maintenance. Regular care will ensure optimal performance and longevity.
- Cleaning: Periodically, with the power OFF, gently wipe the lamp with a soft, dry, lint-free cloth to remove dust and debris. Do not use liquid cleaners directly on the lamp.
- Replacement: The lamp has an average lifespan of 20,000 hours. When the lamp begins to flicker, dim, or fails to illuminate, it is time for replacement. Follow the installation steps in Section 3 for replacement.
- Disposal: Always dispose of old fluorescent lamps responsibly according to local environmental regulations, as they contain small amounts of mercury.
6. Troubleshooting
If your Sunlite F21T5/835 lamp is not functioning as expected, consider the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Lamp does not light up. |
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| Lamp flickers or dims. |
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| Lamp makes buzzing noise. |
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7. Specifications
| Feature | Detail |
|---|---|
| Brand | Sunlite |
| Model Number | F21T5/835 |
| Light Type | Fluorescent |
| Wattage | 21 watts |
| Brightness | 1900 Lumens |
| Color Temperature | 3500 Kelvin (Neutral White) |
| Bulb Shape Size | T5 1/2 |
| Bulb Base | Miniature G5 Bi-Pin |
| Voltage | 120 Volts (Accepted: 100 to 120 Volts and 60 Hertz) |
| Average Life | 20,000 Hours |
| Color Rendering Index (CRI) | 82 |
| Product Dimensions | 0.63"W x 0.63"H x 34"D |
| Material | Polycarbonate (PC) |
| Compliance | RoHS Compliant |
| Indoor/Outdoor Usage | Indoor |
8. Warranty and Support
Warranty: Please refer to the product packaging for specific warranty details. Generally, Sunlite products are covered by a manufacturer's warranty against defects in materials and workmanship.
Support: For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact Sunlite customer service. Contact information can typically be found on the product packaging or the official Sunlite website (Visit the Sunlite Store on Amazon).
