How Much You Save Switching to LED Bulbs
An LED 60W-equivalent draws 8 W vs 60 W for incandescent. Lit 5 h/day at 31 JPY/kWh, each bulb saves (0.060 - 0.008) x 5 x 365 x 31 = about 294 JPY/year; 8 bulbs save about 2354 JPY/year.
Open the interactive Everyday Lifestyle tool →Key facts
| LED draw | 8 W (60W-equivalent) |
|---|---|
| Incandescent | 60 W |
| Daily lighting | 5 h |
| 8 bulbs/year saving | ~2354 JPY |
| Unit price | 31 JPY/kWh |
Frequently asked questions
How much does one LED bulb save per year?
About 294 JPY when replacing a 60 W bulb lit 5 h/day at 31 JPY/kWh.
How much less power does an LED use?
A 60W-equivalent LED uses about 8 W, roughly 87% less than a 60 W incandescent.
Why compare at 5 hours a day?
Five hours is a typical daily on-time for a household lamp, used here as the reference.
Related pages
LED vs Incandescent Savings is part of Everyday Lifestyle on GOAT Lab — a free reference you can use without signing up, and it works offline. Open the tool above for any custom value.
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