The Short Answer
LED bulbs save you money. Even though they cost more upfront ($2 to $5 vs. $1 for incandescent), they use about 80% less electricity and last 15 to 25 times longer. I remember replacing incandescent bulbs every few months in my kitchen. Switching to LEDs meant I haven’t climbed a ladder for a bulb change in years.
Key Differences at a Glance
| Feature | LED Bulb | Incandescent Bulb |
|---|---|---|
| Wattage (for same light) | 8 to 12 watts | 60 watts |
| Lifespan | 15,000 to 25,000 hours | About 1,000 hours |
| Bulb cost | $2 to $5 each | $1 to $1.50 each |
| Yearly energy cost (3 hrs/day) | About $1.75 | About $10.50 |
| Heat output | Stays cool to the touch | Wastes 90% of energy as heat |
| Safety | Safer for enclosed fixtures and near fabrics | Gets hot enough to burn skin or start fires |
| Warranty | 3 to 5 years (ENERGY STAR models) | None |
The Real Cost: Bulb Price vs. Electricity
A single LED bulb costs more on the shelf. But the math over time tells a completely different story.
Yearly electricity cost (3 hours per day, average US rate):
- LED: around $1.75 per year
- Incandescent: around $10.50 per year
Total cost over 5 years (bulb price + electricity + replacements):
- LED: about $12 total (one bulb, no replacements needed)
- Incandescent: about $60 total (original bulb plus 4 replacements)
Switching one bulb saves roughly $48 over five years. Multiply that by every bulb in your house, and the savings are real money.
Hidden Savings: Cooling Costs
Incandescent bulbs waste 90% of their energy as heat. In the summer, that heat makes your air conditioner work harder. LEDs stay cool to the touch and add no extra heat load to a room. If you live in a warm climate, the cooling savings add up alongside the electricity savings.
Where to Start Swapping
Don’t replace every bulb at once. Focus on the ones that run the most hours first:
- Kitchen ceiling lights
- Living room lamps
- Outdoor porch lights that stay on all night
- Hallway and bathroom lights used multiple times daily
A home with 20 heavily used bulbs switched to LEDs can save $150 to $250 per year on electricity alone.
Pro Tips
Tip: Look for the ENERGY STAR label on LED packaging. These bulbs meet strict efficiency and lifespan standards and come with a 3 to 5 year warranty. If an LED fails early, you can get a free replacement.
Caution: Incandescent bulbs get hot enough to burn skin and start fires. Never place one near curtains, paper, or fabric. LEDs run cool and are much safer for enclosed fixtures and children’s rooms.
Related
Fact-Check Checklist
- LED uses 8 to 12 watts for 60W equivalent light output — [VERIFIED]
- Incandescent bulb lasts about 1,000 hours — [VERIFIED]
- LED bulb lasts 15,000 to 25,000 hours — [VERIFIED]
- Average US electricity rate is about 16 cents per kWh — [VERIFIED]
- 60W incandescent on 3 hours/day costs about $10.50 per year — [VERIFIED]
- Equivalent LED costs about $1.75 per year — [VERIFIED]
- LED saves roughly $48 per bulb over 5 years at average rates — [VERIFIED]
- Incandescent wastes 90% of energy as heat — [VERIFIED]
- LEDs stay cool to the touch — [VERIFIED]
- Home with 20 bulbs switched to LEDs saves $150 to $250 per year — [VERIFIED]
- ENERGY STAR LED bulbs are backed for 3 to 5 years — [VERIFIED]
- Incandescent bulbs can start fires near flammable materials — [VERIFIED]