Introduction
This manual provides essential information for the safe installation, operation, and maintenance of your Satco S7377/02 Hi-Pro 105 Watt T5 Spiral Compact Fluorescent Light Bulb. Please read these instructions thoroughly before use and retain them for future reference.

Image: The Satco S7377/02 Hi-Pro 105 Watt T5 Spiral Compact Fluorescent Light Bulb, featuring its distinctive spiral design and E26 screw-in base.
Safety Instructions
To prevent personal injury or product damage, always follow these basic safety precautions:
- WARNING: Risk of Electric Shock. Disconnect power before installation or servicing.
- This bulb is designed for use in dry locations only. Do not use in wet or damp environments.
- This bulb is non-dimmable. Do not use with dimmer switches, as this may damage the bulb or the dimmer.
- Ensure the fixture is rated for the bulb's wattage (105W).
- Do not use if the bulb is cracked or damaged.
- Allow the bulb to cool completely before handling or replacing.
- Dispose of fluorescent bulbs according to local regulations, as they contain small amounts of mercury.
Installation
Follow these steps to install your Satco S7377/02 CFL bulb:
- Turn off power: Before beginning installation, ensure the power to the light fixture is turned off at the circuit breaker or fuse box.
- Prepare the fixture: If replacing an existing bulb, allow the old bulb to cool, then carefully unscrew it counter-clockwise from the socket.
- Insert the new bulb: Gently screw the Satco S7377/02 bulb clockwise into the E26 medium screw-in base socket until it is snug. Do not overtighten.
- Restore power: Once the bulb is securely installed, restore power to the fixture at the circuit breaker or fuse box.
The bulb should illuminate when the light switch is turned on.
Operation
The Satco S7377/02 CFL bulb operates like a standard light bulb. Simply use the wall switch or fixture switch to turn the light on or off. Remember, this bulb is non-dimmable and should not be connected to a dimmer switch.
Maintenance
Minimal maintenance is required for this CFL bulb.
- Cleaning: Ensure the power is off and the bulb is cool before cleaning. Wipe the bulb with a soft, dry cloth. Do not use liquid cleaners or abrasive materials.
- Replacement: The bulb has a rated average life of 10,000 hours. When the bulb reaches the end of its life, turn off the power, allow it to cool, and replace it following the installation steps.
- Disposal: Due to the small amount of mercury contained in fluorescent bulbs, proper disposal is important. Consult your local waste management authority for recycling or disposal guidelines in your area.
Troubleshooting
If your Satco S7377/02 bulb does not operate correctly, try the following:
- Bulb does not light:
- Ensure the power to the fixture is on at the circuit breaker and the wall switch.
- Check that the bulb is screwed in securely into the socket.
- Verify that the fixture itself is working by testing it with another known-good bulb.
- If the bulb is new and still does not light, it may be defective. Contact customer support.
- Flickering:
- Ensure the bulb is not connected to a dimmer switch. This bulb is non-dimmable.
- Check for loose connections in the fixture or wiring.
Specifications
| Feature | Detail |
|---|---|
| Brand | Satco |
| Model Number | S7377/02 |
| Light Type | CFL, Fluorescent (T5 Spiral) |
| Wattage | 105 Watts |
| Incandescent Equivalent | 400 Watts |
| Bulb Base | E26 Medium |
| Brightness | 7000 Lumens |
| Color Temperature | 5000 Kelvin (Warm White) |
| Special Feature | Non-Dimmable |
| Average Life | 10,000 Hours |
| Location Rating | Dry Location |
| Product Dimensions | 4.02 x 4.02 x 10.75 inches |
| Item Weight | 1.43 pounds |
| Certifications | RoHS, UL |
| Voltage | 120 Volts |
Warranty and Support
This Satco S7377/02 CFL bulb comes with a 2 or 3 year limited warranty. For specific warranty details, claims, or technical support, please contact Satco customer service.
Satco Customer Service:
Please refer to the official Satco website or product packaging for the most current contact information (phone, email, or support portal).