LED vs Incandescent — How Much Do You Actually Save? Complete Cost Comparison 2026
Switching from incandescent to LED bulbs reduces energy use by 85% and saves the average household $200-300 per year. A single LED bulb (9W) produces the same light as a 60W incandescent while lasting 25 times longer. Over 10 years, one LED bulb costs $16 total (purchase + electricity) versus $83 for incandescent. With LED bulbs now under $2 each, the payback is just 2-3 months per bulb.
The Numbers: LED vs Incandescent
A standard 60W-equivalent LED uses just 9W while producing 800 lumens — the same brightness. Annual electricity cost per bulb (3 hrs/day at $0.16/kWh): LED: 9W × 3hrs × 365 ÷ 1000 × $0.16 = $1.58/year. Incandescent: 60W × 3hrs × 365 ÷ 1000 × $0.16 = $10.51/year. Savings: $8.93 per bulb per year. For a home with 30 bulbs averaging 4 hours/day, annual savings exceed $250.
Lifespan: 25,000 Hours vs 1,000 Hours
LED bulbs last approximately 25,000 hours — that is 22.8 years at 3 hours/day. Incandescent bulbs last about 1,000 hours — less than one year at 3 hours/day. Over a 10-year period, you would buy 1 LED bulb ($2-3) versus 10+ incandescent bulbs ($10+). When you factor in both electricity AND replacement costs, LEDs are dramatically cheaper despite the higher initial price. The days of cheap incandescent bulbs being the budget option are long over.
10-Year Cost Comparison (One Bulb)
Assumptions: 3 hours/day use, $0.16/kWh, 60W equivalent. LED: Bulb cost $3 (one bulb, still working) + Electricity $15.78 (9W × 10,950hrs ÷ 1000 × $0.16) = $18.78 total. Incandescent: Bulb cost $10 (10 bulbs at $1 each) + Electricity $105.12 (60W × 10,950hrs ÷ 1000 × $0.16) = $115.12 total. LED saves $96.34 per bulb over 10 years. For 30 bulbs, that is nearly $2,900 in savings.
Whole-House LED Savings
The average US home has 30-40 light bulbs. Switching all to LED saves: Small home (20 bulbs, 3 hrs/day): $146/year. Average home (30 bulbs, 4 hrs/day): $266/year. Large home (50 bulbs, 4 hrs/day): $444/year. The investment to switch 30 bulbs: $60-90 (at $2-3/bulb). Payback period: 3-5 months. After payback, the savings continue for 20+ years. Use our LED Savings Calculator for your specific home.
| Feature | LED (9W) | Incandescent (60W) |
|---|---|---|
| Brightness | 800 lumens | 800 lumens |
| Wattage | 9W | 60W |
| Energy Cost/Year | $1.58 | $10.51 |
| Lifespan | 25,000 hrs | 1,000 hrs |
| Bulb Cost | $2-3 | $1 |
| 10-Year Cost | $18.78 | $115.12 |
| Annual Savings | $8.93/bulb | — |
Choosing the Right LED Bulb
Color temperature matters: 2700K (warm white) mimics incandescent — best for living rooms and bedrooms. 3000K (soft white) is slightly brighter — good for kitchens and bathrooms. 4000-5000K (daylight) is best for workspaces and garages. Lumens, not watts: Look at lumens for brightness. 800 lumens = 60W equivalent. 1,100 lumens = 75W. 1,600 lumens = 100W. Dimmable: Get dimmable LEDs if you have dimmer switches — non-dimmable LEDs can flicker or buzz on dimmers. EnergyStar: EnergyStar-rated bulbs are tested for quality and backed by a minimum 3-year warranty.
Disclaimer: For educational reference only. Consult a licensed professional.