Worth it for contractors who need automatic outdoor lighting without timers or manual switches. The built-in photocell sensor handles dusk-to-dawn operation reliably, and the bulb delivers 13.7 years at 3 hours daily use while cutting energy consumption by 85% compared to incandescent bulbs. Sensor reliability gets praise from users — it doesn’t cycle on and off from reflections, and the 5000K daylight color provides crisp illumination without looking blue.
Skip it if you need dimming capability or have existing motion sensors. This bulb won’t work with dimmers or fixtures that interrupt power. The wall switch must stay in the ON position permanently, which some users find annoying when they accidentally flip it off. Sensor performance can suffer in deeply recessed or shaded fixtures.
Energy Efficiency That Makes Sense
The numbers work out better than expected. This 8.8W LED replaces a 60W incandescent while producing 800 lumens — that’s 85% less power draw for the same light output. Montana’s rural electric rates make that efficiency matter more than in urban areas with cheaper power.
At 15,000 hours rated life, you’re looking at 13.7 years of service if you run it 3 hours nightly. That calculation assumes consistent use, but with automatic operation, these bulbs typically run longer during winter months when Montana gets just 8-9 hours of daylight. Figure closer to 10-12 years of real-world service.
| Specification | Value |
|---|---|
| Wattage | 8.8W (replaces 60W) |
| Light Output | 800 lumens |
| Color Temperature | 5000K Daylight |
| Lifespan | 15,000 hours |
| CRI | 90+ (CEC models) / 80+ (standard) |
| Base Type | E26 Medium (standard) |
The daylight color temperature works well for security applications. At 5000K, you get bright white light that shows true colors — important when you need to identify vehicles or see clearly around entry points.
Automatic Operation Without the Hassle
The built-in photocell eliminates timer programming. IntelliBulb models feature a twistable base that lets you orient the sensor toward open sky — clever solution for fixtures where overhangs or architectural features might block the sensor’s view.
No warm-up time either. Full brightness happens instantly, unlike older CFL dusk-to-dawn bulbs that took forever to reach full output on cold mornings.
Installation stays simple:
- Turn the wall switch OFF before installing
- Screw into any standard E26 socket
- Rotate the base to point sensor skyward if needed
- Leave switch ON permanently for automatic operation
Don’t use these in fixtures with timers or motion sensors — the interrupted power prevents proper operation. The photocell needs constant power to function.
Built for Montana’s Weather
Enclosed-fixture rating means these bulbs handle the sealed globes and sconces common on Montana homes. That matters when temperatures swing from -30°F to 90°F throughout the year. Bulbs without enclosed ratings cook themselves in sealed fixtures.
The fixture compatibility includes enclosed fixtures, open fixtures, and damp-rated outdoor applications under cover. Don’t use them in direct weather exposure — they’re damp-rated, not wet-rated.
Feit backs these with a 1-year limited warranty. UL Listed for safety, FCC compliant for interference, and RoHS compliant for hazardous substances. CEC models meet Title 20 California energy standards — not required in Montana but indicates higher efficiency standards.
Common Questions
Can these bulbs work with dimmer switches? No. These bulbs are not dimmable and won’t work with dimmer switches. The photocell sensor requires full voltage to operate properly.
What happens when the wall switch gets turned off accidentally? The bulb won’t work at all. The switch must remain ON for the photocell sensor to function. Consider switch guards if accidental shutoffs become a problem.
Do they work in cold weather? Yes. LED technology provides instant-on operation without warm-up delays, even in Montana’s coldest conditions. The enclosed-fixture rating indicates they handle temperature extremes.
How sensitive is the photocell sensor? Users report reliable operation without false triggering from reflections. However, deeply recessed or heavily shaded fixtures can affect sensor performance. IntelliBulb models with twistable bases help position the sensor for best results.
What’s the difference between standard and CEC models? CEC models feature 90+ CRI versus 80+ for standard models. Higher CRI means better color rendering — more important for residential entries than utility lighting.
Frequently Asked Questions
Q: How long do Feit dusk-to-dawn bulbs actually last?
The Feit A19 60W Equivalent Dusk-to-Dawn bulb is rated for 15,000 hours, which equals approximately 13.7 years when used 3 hours per day. Real-world lifespan in Montana will likely be 10-12 years since these bulbs run longer during winter months when daylight hours are shorter.
Q: Do Feit dusk-to-dawn bulbs work with existing dimmer switches?
No, these Feit dusk-to-dawn bulbs are not dimmable and won’t work with dimmer switches. The built-in photocell sensor requires constant full voltage to operate properly, so you’ll need to replace dimmer switches with standard on/off switches.
Q: What’s the actual energy savings with these Feit LED bulbs?
The Feit A19 dusk-to-dawn bulb uses only 8.8 watts while producing 800 lumens of light, replacing a traditional 60W incandescent. That’s an 85% reduction in energy consumption, which adds up quickly for outdoor lights that run all night.
Q: Do Feit dusk-to-dawn bulbs work in enclosed fixtures?
Yes, these Feit bulbs are specifically rated for enclosed fixtures, making them suitable for sealed globes and sconces. The enclosed-fixture rating means they can handle the heat buildup that occurs in fully sealed fixtures without premature failure.
Q: What color temperature works best for outdoor security lighting?
The Feit A19 dusk-to-dawn bulb comes in 5000K daylight, which provides bright white light ideal for security applications. Users report this color temperature offers crisp illumination without looking too blue, making it effective for identifying vehicles and seeing clearly around entry points.
Q: Why won’t a Feit dusk-to-dawn bulb turn on even with the switch in the on position?
The photocell sensor may not be detecting darkness properly if the bulb is in a deeply recessed or heavily shaded fixture. Feit’s IntelliBulb models feature a twistable base that lets you rotate the sensor toward open sky for better light detection.
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