This 8.5W LED bulb delivers 800 lumens of 3000K warm white light while using 85% less energy than traditional 60W incandescents. The 11,000 to 15,000 hour lifespan (approximately 10-13 years) means you’ll replace bulbs less often — valuable when you’re billing labor by the hour or maintaining rental properties across Montana’s spread-out communities.
Energy Efficiency That Matters in Cold Climates
The math is straightforward. These bulbs use only 8.5W to produce the same 800 lumens you’d get from a 60W incandescent — that’s approximately 85% energy savings. In Montana homes running lights 12+ hours during winter months, that efficiency adds up fast.
The bulbs are rated for 11,000 to 15,000 hours. Call it 10-13 years of typical use. That’s 10-13 fewer service calls for bulb replacements. The warranty duration matches at 10 to 13 years, though good luck finding anyone who keeps warranty paperwork that long.
At 3000K warm white, these bulbs hit the sweet spot for residential lighting. Not the harsh blue-white that makes homes feel like operating rooms, but warm enough to feel comfortable without being too yellow. The 80 CRI rating means colors look decent — not spectacular, but fine for general lighting.
Technical Specs for Installation Planning
| Specification | Value |
|---|---|
| Wattage | 8.5W |
| Light Output | 800 Lumens |
| Color Temperature | 3000K (Warm White) |
| Base Type | E26 Medium Base |
| Shape | A19 |
| Dimmable | No |
| CRI | 80 |
| Lifespan | 11,000-15,000 hours |
| Voltage | 120V |
| Finish | Frosted |
These bulbs won’t work with dimmer switches — that’s the trade-off for non-dimmable LED technology. If a customer has dimmers installed, you’ll need different bulbs or they’ll need to swap out the switches.
Where They Work (And Where They Don’t)
The bulbs fit any standard E26 medium base socket. Applications include general household lighting, downlights, pendant fixtures, table and floor lamps.
They’re rated for indoor use and damp locations. That damp location rating matters in Montana — think bathroom fixtures, covered porches, or anywhere condensation might be an issue. But they’re not for fully exposed outdoor use.
The non-dimmable design is a deal-breaker for dining rooms, bedrooms, or anywhere mood lighting matters. Don’t even try using them with dimmer switches — they’ll flicker, buzz, or fail prematurely.
Field Performance Reality
The bulbs carry ratings between 3.7 and 4.8 stars across multiple retailers. With review counts of 6, 53, and 245, that’s enough feedback to suggest consistent performance.
The instant-on feature means no warm-up time — flip the switch and get full brightness immediately. That’s table stakes for LED now, but worth confirming given how many cheap LEDs still have a slight delay.
Certifications include UL Listed, RoHS Compliant, and FCC Compliant. The UL listing is what matters for electrical inspections. RoHS compliance (no lead or mercury) is standard now but good to verify.
Bottom Line
The 4-pack includes four 8.5W A19 warm white LED bulbs. Buying in 4-packs is more economical than singles — useful for whole-house retrofits or new construction.
Worth buying for basic residential lighting where dimming isn’t needed. The energy savings are real, the lifespan reduces callbacks, and the warm white color keeps customers happy. Skip them for any application requiring dimmer compatibility or outdoor exposure.
Frequently Asked Questions
How long do these Sylvania LED bulbs actually last?
The bulbs are rated for 11,000 to 15,000 hours, which translates to approximately 10-13 years of typical use. That assumes about 3 hours of daily use. In Montana homes where lights run longer during winter months, expect closer to 8-10 years.
Can these bulbs work with existing dimmer switches?
No, these bulbs are non-dimmable and not compatible with dimmer switches. Using them with dimmers will cause flickering, buzzing, or premature failure. You’ll need to either replace the dimmer with a standard switch or choose dimmable LED bulbs instead.
What’s the actual color of the light?
These bulbs produce 3000K warm white light. That’s warmer than daylight (5000K) but not as yellow as traditional incandescents (2700K). Think of it as a comfortable middle ground — warm enough for living spaces without being too yellow.
How much electricity will these really save?
These 8.5W LEDs use approximately 85% less energy than 60W incandescent bulbs while producing the same 800 lumens. For a bulb running 5 hours daily, that’s about 80 kWh saved per year per bulb.
Are these safe for enclosed fixtures?
The bulbs are rated for damp locations but enclosed fixture compatibility varies by LED model. Many non-dimmable LEDs handle enclosed fixtures fine, but check the packaging or contact Sylvania directly if you’re installing in fully enclosed fixtures.
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