1. Introduction
This manual provides essential information for the safe and effective use of your Satco S3671 G30 40-Watt Incandescent Light Bulb. Incandescent lamps, like this model, operate by heating a tungsten filament to incandescence. The filament is protected within a vacuum-sealed or gas-filled glass bulb to prevent oxidation and ensure longevity. This design allows the filament to reach high temperatures necessary for light production.

Figure 1: Satco S3671 G30 40-Watt Incandescent Light Bulb. This image displays the frosted globe-shaped bulb with a medium screw base.
2. Safety Information
- Always turn off the power to the fixture and allow the bulb to cool before installing or removing.
- Do not exceed the maximum wattage rating of your light fixture.
- Handle bulbs carefully to avoid breakage.
- This bulb is designed for indoor use only.
- Keep away from flammable materials.
3. Installation
Follow these steps to properly install your Satco S3671 light bulb:
- Ensure the power supply to the light fixture is turned off at the circuit breaker or wall switch.
- If replacing an old bulb, allow it to cool completely before carefully unscrewing it counter-clockwise from the socket.
- Gently screw the Satco S3671 bulb clockwise into the E26 medium base socket until it is snug. Do not overtighten.
- Restore power to the fixture.

Figure 2: Packaging for the Satco S3671 G30 40-Watt Incandescent Light Bulb. The packaging confirms the model, wattage, and gloss white finish.
4. Operation
Once installed, the Satco S3671 light bulb operates like any standard incandescent bulb. Simply use the wall switch or fixture control to turn the light on or off. This bulb provides instant full brightness upon activation.
5. Maintenance
Minimal maintenance is required for this incandescent light bulb.
- Cleaning: Ensure the power is off and the bulb is cool. Wipe the bulb with a soft, dry cloth. Do not use liquid cleaners or abrasive materials.
- Replacement: When the bulb reaches the end of its operational life (approximately 2500 hours), it will cease to function. Follow the installation steps to replace it with a new bulb of the same specifications.
6. Troubleshooting
If your Satco S3671 light bulb does not illuminate, consider the following:
- No Light:
- Check if the power switch is in the "ON" position.
- Verify that the bulb is securely screwed into the socket.
- Confirm that the circuit breaker for the fixture has not tripped.
- If the bulb has been in use for an extended period, it may have reached the end of its lifespan and requires replacement.
- Flickering:
- Ensure the bulb is tightly screwed into the socket. Loose connections can cause flickering.
- Check the fixture's wiring for any loose connections (consult a qualified electrician if unsure).
7. Specifications

Figure 3: Lighting Facts label for the Satco S3671 G30 40-Watt Incandescent Light Bulb, detailing brightness, energy cost, life, light appearance, and energy used.
| Feature | Detail |
|---|---|
| Brand | Satco |
| Model Number | S3671 |
| Light Type | Incandescent |
| Special Feature | Frosted |
| Wattage | 40 watts |
| Bulb Shape Size | G30 (Globe) |
| Bulb Base | E26 Medium |
| Voltage | 120 Volts |
| Brightness | 320 Lumens |
| Color Temperature | 2700 Kelvin (Warm White) |
| Average Life | 2500 Hours |
| Material | Copper (filament/base components) |
| Indoor/Outdoor Usage | Indoor |
| Product Dimensions | 2 x 2 x 3.5 inches |
| Item Weight | 3.2 ounces |
8. Warranty and Support
For warranty information or technical support regarding your Satco S3671 G30 40-Watt Incandescent Light Bulb, please contact Satco Products directly. Refer to the product packaging or the official Satco website for the most current contact details and warranty terms.
Manufacturer: Satco Products
UPC: 045923036712







