How much does one LED bulb save per year?

Take the wattage difference (a 60W incandescent to a 9W LED is 51W), divide by 1,000, multiply by hours used per day, by 365, then by your rate per kWh. At 3 hours a day and 17 cents per kWh that single bulb is a few dollars a year — which is why the count of bulbs and their hours matters more than the bulb brand.

Are smart bulbs worth the extra money?

In rooms where lights get left on, yes: schedules and dimming remove the waste. In a closet used for thirty seconds a day, a plain LED is the better buy.

Do LEDs really last longer?

Rated life is typically 15,000–25,000 hours against about 1,000 for an incandescent. Real life depends on heat and enclosure — an LED sealed in a hot fixture will not reach its rating.

Why does my LED flicker on a dimmer?

Older dimmers were designed for resistive incandescent loads. Use an LED-rated dimmer and bulbs marked dimmable, and the flicker usually disappears.

Buying guide

Best LED bulbs to lower your electric bill

Lighting is the cheapest upgrade in the house and the easiest one to calculate honestly — the wattage difference does the work.

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An LED at roughly 9W replaces a 60W incandescent at similar brightness. The saving is not a marketing figure; it is 51 watts multiplied by the hours the lamp burns and your rate per kilowatt-hour.

That means the bulbs to change first are not the prettiest fixtures — they are the ones that stay on longest. Our picks start with the plain multipack for exactly that reason.

Last updated 2026-09-15. Savings ranges are estimates based on typical US usage and electricity rates. Your actual result depends on your habits, local rate and how much the device is used — nothing here is a guaranteed saving.

How we chose

Watts per lumen — the actual efficiency claim.
Rated life, because replacements cost money too.
Whether dimming or scheduling adds real savings for the extra cost.
Whether it needs a hub, app or wiring work.

We don't publish invented test data or guaranteed dollar savings. Where numbers appear, the arithmetic is shown so you can run it on your own bill.

Run your own numbers in the calculator

Questions people ask

How much does one LED bulb save per year?: Take the wattage difference (a 60W incandescent to a 9W LED is 51W), divide by 1,000, multiply by hours used per day, by 365, then by your rate per kWh. At 3 hours a day and 17 cents per kWh that single bulb is a few dollars a year — which is why the count of bulbs and their hours matters more than the bulb brand.
Are smart bulbs worth the extra money?: In rooms where lights get left on, yes: schedules and dimming remove the waste. In a closet used for thirty seconds a day, a plain LED is the better buy.
Do LEDs really last longer?: Rated life is typically 15,000–25,000 hours against about 1,000 for an incandescent. Real life depends on heat and enclosure — an LED sealed in a hot fixture will not reach its rating.
Why does my LED flicker on a dimmer?: Older dimmers were designed for resistive incandescent loads. Use an LED-rated dimmer and bulbs marked dimmable, and the flicker usually disappears.

Keep reading

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A short, practical PDF you can work through in a weekend. No fluff, no hype — just the changes that move a real electric bill.

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How to read your bill and spot the expensive habits
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