Feit LED Bulbs: Energy Efficiency Specs and Model Comparisons

Feit LED bulbs deliver 77-91% energy savings compared to traditional incandescents, with efficiency varying significantly across their A19, A15, A21, and specialty lines. The 10W non-dimmable models hit 80-89 lumens per watt, while their 14.7W bulbs achieve 100 lumens per watt — that efficiency difference matters when you’re lighting an entire house.

Core A19 Models and Performance Specs

The workhorse A800/827/10KLED/4 delivers 800 lumens at just 10 watts, matching 60W incandescent output while using 83% less energy. At 80-89 lumens per watt, it’s efficient without breaking new ground. The non-dimmable design keeps the cost down for basic LED performance.

The step up is the OM60DM/927CA/4 — dimmable with 90+ CRI for better color rendering. That high CRI matters in bathrooms where you need accurate skin tones, or dining rooms where food needs to look appetizing. The dimmable version costs more, but you’re paying for flexibility and color accuracy, not just light output.

Model	Lumens	Watts	Efficacy	Dimmable	CRI	Key Feature
A800/827/10KLED	800	10W	80-89 lm/W	No	80	Budget 4-pack
OM60DM/927CA	Not specified	Not specified	Not specified	Yes	90+	CEC Title 20 compliant

All models use standard E26 medium screw bases and run on 120V AC — they’ll work in any standard socket. The 11,000-hour rated life translates to about 10 years at 3 hours daily use, though real-world performance varies based on how often you flip the switch and whether the fixture traps heat.

Color Temperature Applications

Feit’s 2700K soft white creates that warm, yellowish light most folks want in living spaces. It’s the right choice for bedrooms, living rooms, and anywhere you want to relax. The 5000K daylight version produces bluish-white light better suited for task lighting, offices, or workspaces — anywhere you need to see detail clearly.

The verdict: soft white everywhere except the garage and workshop. That harsh daylight color makes your living room feel like a hospital waiting room. Save the 5000K bulbs for places where color accuracy and visual clarity actually matter — matching paint colors, detailed electrical work, or reading fine print on building plans.

Real-World Performance and Reliability

Users report widespread early failures, flickering, and short lifespans despite the 15,000-hour claims. The culprit is usually heat damage to internal drivers rather than LED failure — when trapped heat can’t dissipate, the electronics cook themselves.

Feit rates these bulbs for damp locations but not direct water exposure. That means covered porches and garage door lights are fine, but skip them for exposed fixtures. Even in non-enclosed fixtures, heat-related failures remain common — the driver components just aren’t robust enough for Montana’s temperature swings.

Specialty Applications for Montana

Beyond standard A19s, Feit makes bulbs that solve specific problems. Their yellow bug lights put out 400 lumens at just 5 watts — perfect for porch lights during mosquito season. The bugs can’t see yellow wavelengths as well, so they’re less attracted to your entry points.

For agricultural use, Feit’s 250W R40 heat lamps work in standard sockets but draw serious power. They’re old-school incandescent technology, not LED, because you want the heat output for warming chicks or preventing water pipes from freezing in wellhouses. Just remember you’re paying for 250 watts of electricity to get that heat.

The bottom line on Feit: decent efficiency, but don’t expect miracle longevity. Reviews show 83% five-star ratings, with users praising the warm light quality and cost-effective multipacks. Buy them for the energy savings and reasonable upfront cost, not because you believe that 11,000-hour lifespan claim.

Frequently Asked Questions

What’s the actual efficiency difference between Feit LED models?

The basic 10W A19 achieves 80-89 lumens per watt, while higher-end models reach 100 lumens per watt. That 20% efficiency gain means lower electric bills, but at typical Montana power rates, you’re talking pennies per month difference. The real savings comes from switching away from incandescent, not optimizing between LED models.

Do Feit LEDs really last 11,000 hours?

Feit rates their basic A19s at 11,000 hours, but real users report early failures and flickering well before that mark. Heat buildup in the driver electronics causes most failures. In fixtures with good airflow, you might see 5-7 years. In enclosed fixtures or areas with poor ventilation, expect 2-3 years max.

Which Feit bulb works best for livestock heat lamps?

The 250W R40 heat lamp is your only real option from Feit for warming applications. It’s incandescent technology because LEDs don’t produce enough heat for livestock warming or freeze protection. Yes, you’ll use 250 watts of power, but that’s the point — you’re buying heat output, not light efficiency.

Can Feit LEDs be used with dimmer switches?

Only specific models like the OM60DM series work with dimmers — the basic A800/827/10KLED is non-dimmable. Using non-dimmable LEDs on dimmer circuits causes flickering, buzzing, and early failure. If you need dimming, pay extra for the dimmable models or replace your dimmer switches with standard on/off switches.