If you're still using incandescent or even CFL bulbs, you're literally burning money — especially in California where electricity rates exceed $0.30/kWh. LED lighting uses up to 75% less energy and lasts 25 times longer than incandescent bulbs. This complete guide walks you through every aspect of converting your home to LED.
The California LED Math
A typical California home with 30 light fixtures running an average of 4 hours per day uses approximately 2,400 kWh per year on lighting. At California's average electricity rate of $0.32/kWh, that's $768 annually just for lighting.
Converting to LED reduces that to about 600 kWh per year, or $192. That's annual savings of $576 — and the LED bulbs themselves last 15–25 years, so the savings continue indefinitely.
Understanding LED Specifications
LED bulb packaging looks intimidating with watts, lumens, color temperature, and CRI. Here's what you actually need to know.
Watts vs Lumens
Watts measure energy use; lumens measure brightness. LED bulbs use few watts to produce many lumens. Look for lumens to match the brightness you want.
| Old Incandescent | Equivalent Lumens | LED Wattage |
|---|---|---|
| 40W | 450 lumens | 5 – 7W |
| 60W | 800 lumens | 8 – 10W |
| 75W | 1100 lumens | 10 – 13W |
| 100W | 1600 lumens | 14 – 17W |
| 150W | 2600 lumens | 23 – 28W |
Color Temperature (Kelvin)
- 2700K – 3000K: Warm white (like incandescent) — best for living areas, bedrooms
- 3500K – 4100K: Cool white (neutral) — good for kitchens, bathrooms
- 5000K – 6500K: Daylight (blue-tinted) — best for task lighting, garages
Color Rendering Index (CRI)
CRI measures how accurately the light shows colors. CRI 80+ is acceptable; CRI 90+ is excellent for spaces where color matters (bedrooms, kitchens, bathrooms).
Types of LED Conversion
1. Direct Bulb Replacement
Easiest conversion — just unscrew incandescent bulbs and screw in LED replacements. Works with any standard fixture. Cost: $3–$10 per bulb.
2. Recessed Light Retrofit Kits
Retrofit kits replace incandescent recessed lights without changing the housing. Just remove the old trim and bulb, then install the LED retrofit. Cost: $15–$40 per fixture.
3. Fixture Replacement
Some old fixtures aren't compatible with LED bulbs (especially older recessed cans and some dimmer-switched fixtures). Full fixture replacement may be needed. Cost: $50–$200 per fixture installed.
4. Smart LED Conversion
Add smart capabilities while converting to LED — color-changing bulbs, dimming via app, scheduling. Cost: $15–$50 per bulb.
Room-by-Room LED Strategy
Living Room
Use 2700K warm white in 800–1100 lumen range for ambient lighting. Layer with 2700K spot lighting (recessed cans) for task areas. Dimmer-compatible bulbs add ambiance flexibility.
Kitchen
3000K–4000K provides the brighter, cleaner light kitchens need. Use higher lumen output (1100–1600+) for task lighting at counters. Under-cabinet LED strips eliminate shadows on prep areas.
Bedroom
Warm 2700K bulbs for restful atmosphere. Lower lumens (450–800) for bedside lamps, higher for ceiling fixtures. Avoid blue-tinted daylight LEDs that can disrupt sleep.
Bathroom
3000K–4000K with high CRI (90+) gives accurate color for makeup application and grooming. Bright LED vanity bulbs (800–1100 lumens) eliminate shadows.
Outdoor Spaces
Cool white (4000K–5000K) provides better visibility for security and pathways. Look for LED bulbs rated for outdoor use and weatherproof fixtures.
Common LED Compatibility Issues
Dimmer Switch Problems
Old incandescent dimmer switches often don't work properly with LED bulbs — causing flickering, buzzing, or limited dimming range. Solutions: replace switches with LED-compatible dimmers ($25–$50) or use specifically marked dimmable LED bulbs.
Enclosed Fixture Heat
Standard LED bulbs can overheat in fully enclosed fixtures, shortening lifespan. Use bulbs specifically rated for enclosed fixtures (look for the icon).
Three-Way Fixtures
Three-way fixtures (low-medium-high) require LED bulbs marked as three-way compatible. Standard LEDs will only operate at one brightness in these fixtures.
California LED Rebates
Check with PG&E, SCE, and SDG&E for current LED rebate programs. Many California utilities offer instant rebates at participating retailers, bringing LED costs down further.
Conversion Cost vs Savings
| Home Size | Conversion Cost | Annual Savings | Payback |
|---|---|---|---|
| Small (15 fixtures) | $100 – $200 | $200 – $300 | 4 – 12 months |
| Medium (30 fixtures) | $200 – $400 | $400 – $600 | 5 – 12 months |
| Large (50 fixtures) | $400 – $800 | $650 – $950 | 6 – 15 months |
| Premium (with smart bulbs) | $1,000 – $2,500 | $650 – $950 | 13 – 38 months |
Why Hire a Professional?
While bulb-only conversion is DIY-friendly, professional service makes sense for: recessed light retrofits, fixture replacement, dimmer switch replacement, smart LED system setup, and high or vaulted ceilings.
Professional LED Conversion Service
Precision Handy Repairs provides complete LED conversion services. We assess your current lighting, recommend optimal LED options for each fixture, handle all installation, and ensure compatibility with your dimmers and smart home system.
Call (510) 938-4277 to start saving. Learn about our electrical services, or read related guides on energy-saving home repairs and smart home upgrades.
Need Professional Help?
Call Precision Handy Repairs for expert home repair services. Free estimates, same-day availability.
(510) 938-4277