Bedroom
Bedroom LED savings: incandescent vs LED
Switching the 4 bulbs in a bedroom from 60W incandescent to 9W LED cuts each bulb draw by 85%. Running them 4 hours a day, that saves about 297 kWh and roughly $57/year at the 2026 US-average rate of 19 cents per kWh, or about $570 over 10 years.
Incandescent vs LED for a bedroom
| Metric | Incandescent | LED |
|---|---|---|
| Watts per bulb | 60 W | 9 W |
| Total wattage (4 bulbs) | 240 W | 36 W |
| Energy per year | 350 kWh | 53 kWh |
| Cost per year | $67 | $10 |
How the savings are calculated
Energy use is bulbs x watts x hours per day x days per year, divided by 1000 for kWh. For this bedroom: 4 x 60W x 4h x 365 days is 350 kWh/year with incandescent, versus 53 kWh/year with LED. The 297 kWh difference times $0.16 is the annual saving. At about $16 for 4 quality LED bulbs, they pay for themselves in roughly 3 months.
Bulb life and replacement savings
A typical LED lasts about 25,000 hours versus roughly 1,000 hours for an incandescent, so one LED outlasts around 25 old bulbs. At 4 hours a day, the LEDs in this bedroom should last well over a decade before replacement, on top of the energy savings above. LEDs also run cool, which slightly reduces summer cooling load.
Frequently asked questions
How much do LED bulbs save in a bedroom?
Switching 4 bulbs from 60W to 9W LED saves about 297 kWh and $57 per year at 16 cents/kWh, based on 4 hours of use per day.
Are LED bulbs worth it for a bedroom?
Yes. The 4 LED bulbs cost about $16 and pay for themselves in roughly 3 months, then keep saving $57 a year while lasting far longer than incandescent bulbs.
How much electricity do the lights in a bedroom use?
With incandescent bulbs, about 350 kWh per year ($67). With LEDs, about 53 kWh per year ($10).
Disclaimer: For reference only. Consult a licensed professional.