1. Product Overview
The Sylvania CF13EL/Spiral/835 is a 13-watt compact fluorescent light (CFL) bulb designed for energy efficiency and long-lasting illumination. It features a mini twist/spiral shape and a standard medium screw (E26) base, making it compatible with most common light fixtures. This bulb provides a warm white light with a color temperature of 3,500 Kelvin, suitable for various indoor environments.

Image 1: Sylvania CF13EL/Spiral/835 Compact Fluorescent Light Bulb. This image displays the spiral-shaped compact fluorescent light bulb with its E26 medium screw base.
2. Setup and Installation
Before installation, ensure the power to the light fixture is turned off at the circuit breaker to prevent electrical shock. Allow any existing bulb to cool completely before removal.
- Carefully remove the new Sylvania CF13EL/Spiral/835 bulb from its packaging. Avoid touching the glass spiral tubing directly.
- Screw the bulb clockwise into a compatible E26 medium screw base socket until it is snug. Do not overtighten.
- Restore power to the light fixture at the circuit breaker.
- Turn on the light switch to verify proper operation.
Video 1: Spiral CFL E26 Medium Base Bulb. This video demonstrates the physical appearance of a spiral CFL bulb with an E26 medium base, highlighting its design and compatibility.
3. Operating Instructions
The Sylvania CF13EL/Spiral/835 bulb is designed for straightforward operation:
- Simply use the standard light switch connected to your fixture to turn the bulb on or off.
- The bulb provides instant-on illumination without flickering.
- It emits a warm white light (3,500K) that is comfortable for the eyes and suitable for various indoor settings.
- This 13-watt bulb is energy-efficient, consuming significantly less power than traditional incandescent bulbs while providing comparable brightness.
4. Maintenance
The Sylvania CF13EL/Spiral/835 Compact Fluorescent Light Bulb requires minimal maintenance due to its long average lifespan of 10,000 hours. No regular cleaning or specific upkeep is necessary beyond ensuring the bulb and fixture are free from dust buildup. If cleaning is required, ensure the power is off and the bulb is cool, then gently wipe with a dry, soft cloth.
5. Troubleshooting
If your Sylvania CF13EL/Spiral/835 bulb is not functioning correctly, consider the following:
- Bulb Not Lighting Up:
a. Ensure the light switch is in the 'on' position.
b. Check if the bulb is securely screwed into the socket. Turn off power, remove, and re-insert the bulb.
c. Verify that the circuit breaker for the fixture has not tripped.
d. Test the fixture with a known working bulb to rule out a fixture issue. - Dim or Inconsistent Light:
a. Ensure the bulb is fully screwed in.
b. Check for any loose wiring in the fixture (consult a qualified electrician if unsure).
c. If the bulb is nearing the end of its lifespan, it may begin to dim. Replace with a new bulb.
6. Specifications
| Feature | Detail |
|---|---|
| Brand | Sylvania |
| Model Number | 26373 |
| Wattage | 13 Watts (60W equivalent) |
| Voltage | 120 Volt |
| Base Type | Medium Screw (E26) |
| Color Temperature | 3,500K (Warm White) |
| Average Lifetime | 10,000 Hours |
| Bulb Shape Size | T6 1/2 (Mini Twist / Spiral) |
| Special Feature | Long Lasting, Energy Efficient |
| Item Weight | 3 Ounces |
7. Safety Information
Please observe the following safety precautions:
- Always turn off power at the circuit breaker before installing or removing the bulb.
- Do not use in totally enclosed luminaires unless the fixture is specifically designed for CFLs.
- Not suitable for use with dimmers unless explicitly stated on the packaging.
- Avoid touching the bulb with wet hands.
- If the bulb breaks, follow local guidelines for mercury cleanup and disposal.
8. Warranty and Support
For warranty information and customer support, please refer to the official Sylvania website or contact their customer service directly. Keep your purchase receipt as proof of purchase for any warranty claims.





