A $15 Outlet Timer Pays for Itself in 3.4 Months
Devices left running when nobody needs them — lights, fans, space heaters — quietly waste about $4.50/month in electricity. A programmable timer cuts that to roughly $0.10/month in standby draw. For fifteen bucks, the payoff math borders on silly.
Payoff Time
3.4 mo
Outlet Timer vs Manually Switching Devices
Product cost
$15
one-time
Annual savings
$53
vs Manually Switching Devices
Best Payoff
Outlet Timer
The Setup: Your Outlets Are Bleeding Money While You Sleep
Nobody thinks of themselves as the person who leaves things on. And yet: the bathroom fan hums for three hours after your shower. The porch light stays lit until noon. The space heater in the basement keeps toasting an empty room all night. It's not dramatic waste — it's the slow, quiet kind. A couple of devices running an extra hour or two a day, every day, 365 days a year.
A programmable outlet timer is the most boring product you can buy. It's a little box that sits between the wall and your plug and says "on at 6 PM, off at 11 PM" — and then actually does it. No willpower needed. No forgetting. No shouting down the hallway.
The Math
We assume a typical household wastes roughly 1–2 hours of unnecessary runtime per day across a few devices averaging about 150 watts — think a lamp plus a fan, or a single space heater left on after you leave a room. At the national average electricity rate of ~$0.16/kWh, that wasted runtime costs about $4.50/month. The timer itself draws negligible standby power (around 1 watt), adding roughly $0.10/month to your bill. Net monthly savings: about $4.00.
A solid programmable timer runs about $15. At $4/month in savings, you break even in 3.4 months — well before your next electricity bill makes you wince. Over a full year, that's roughly $53 back in your pocket from a product that requires approximately zero ongoing effort.
| Outlet Timer | Manually Turning Things On and Off | |
|---|---|---|
| Upfront cost | $15 | $0 |
| Monthly ongoing | $0 | $5 |
| Month 1 total | $15 | $5 |
| Month 2 total | $15 | $9 |
| Month 3 total | $15 | $14 |
| ★ Breakeven (~3.4 months) | $15 | $18 |
| Year 1 total | $16 | $54 |
| Year 3 total | $19 | $162 |
| 5-year total | $21 | $270 |
* All figures are estimates. See methodology for assumptions.
Cumulative Cost Over Time
The lines cross at the breakeven point — that's when the savings zone begins.
When This Doesn't Pay Off
Let's be honest: if you're already disciplined about flipping switches and unplugging things, your waste baseline is lower — and the timer's savings shrink accordingly. Someone who only leaves a single LED bulb on an extra hour a day is looking at pennies, not dollars. The math above assumes multiple devices and real, habitual forgetfulness. If that doesn't sound like your household, the payoff stretches out significantly (see the "light use" scenario above).
Timers also only help with devices that follow a predictable schedule. If your usage is random — say, a workshop light you only need on Tuesdays for twenty minutes — a timer adds hassle instead of removing it. Smart plugs (like the premium pick below) handle irregular schedules better, but they cost more and need Wi-Fi.
Finally, timers can't save what isn't being wasted. If your electricity bill is already lean, there may not be enough "phantom hours" to recoup even $15. Check your actual habits before buying three of these for every room.
Sensitivity Analysis: Your Results May Vary
Payoff time changes based on how much you currently spend.
Heavy use (multiple devices, long waste)
Several devices routinely run hours longer than needed — saving about $8/month and breaking even in under 2 months.
1.9mo
$94/yr
Typical use (a few devices, daily waste) (our base case)
A couple of devices run 1–2 extra hours a day — saving about $4/month and breaking even in ~3.4 months.
3.4mo
$53/yr
Light use (1 device, short waste)
You occasionally leave one device on too long — saving about $2/month and breaking even in ~6 months.
6.1mo
$29/yr
"A $15 outlet timer saves roughly $53 a year in wasted electricity — paying for itself in just 3.4 months."
What We Recommend
All three picks below will pay for themselves — the difference is features and flexibility. Our payoff math assumes the mid-tier price of $15 and roughly $4/month in electricity savings from eliminating wasted device runtime across a typical household.
BN-LINK Indoor Digital Timer Outlet, Dual Outlet 7 Day Programmable Light Switch, 3 Prong Plug in Timers for Electrical Outlets, Lamps, Fans, 8 On/Off Programs, 1 Pack, 15A/1875W, ETL Listed
$13
upfront
3mo
payoff
$53
/ year
The BN-LINK is the no-frills workhorse: dual outlets, 7-day programming, and 8 on/off slots for $12. It does exactly one thing — cut power on a schedule — and does it reliably. At three bucks less than our math assumes, it actually breaks even even faster (~3 months). Perfect if you just need one timer on a lamp or fan and don't want to overthink it.
Check current price →Price shown is approximate. Click for current price. Affiliate link.
DEWENWILS 24 Hour Programmable Digital Timer Outlet, 2 Pack Timers for Electrical Outlets, Light Timer for Indoor Lamp Fan Aquarium, 1 Grounded Outlet, 125V/15A/1000W, 3 Prong, 1/2 HP
$18
upfront
4.1mo
payoff
$53
/ year
The DEWENWILS two-pack is the sweet spot. You get two independent timers for $15 — effectively $7.50 each — which means you can cover two problem devices (say, a porch light and a bedroom fan) for the price we modeled. 24-hour programming is simpler than 7-day, but for most daily routines that's all you need. Best bang-for-buck pick.
Check current price →Price shown is approximate. Click for current price. Affiliate link.
GHome Smart Plug, WiFi Smart Plugs Work with Alexa and Google Home, Smart Outlet Timer with APP Remote Control, 2.4GHz Wi-Fi Only, No Hub Required, ETL FCC Listed
$25
upfront
5.7mo
payoff
$53
/ year
The GHome Smart Plug costs more at $24, but it adds Wi-Fi control, Alexa/Google Home integration, and app-based scheduling from anywhere. If your waste patterns are irregular or you want to adjust timers without crawling behind furniture, this is the upgrade. Payoff takes a bit longer (~5.5 months at $4/mo savings), but the convenience factor makes you more likely to actually use it consistently — which is the whole point.
Check current price →Price shown is approximate. Click for current price. Affiliate link.
What we didn't account for
- → Electricity rates vary widely We used the national average of ~$0.16/kWh. If you're in a state like Louisiana (~$0.11) your savings will be lower; in California or Connecticut (~$0.25+) they'll be higher.
- → Your waste habits are unique The $4.50/month baseline assumes 1–2 hours of unnecessary runtime per day on ~150W of devices. If you're already diligent about turning things off, your actual waste — and therefore your savings — could be much less.
- → Timer won't reduce standby draw Many electronics draw small amounts of power even when "off" (TVs, game consoles, chargers). A basic timer helps with runtime waste but won't eliminate all phantom loads unless you schedule full power cuts.
- → Not all devices are timer-friendly Some devices (like certain smart TVs or computers) don't gracefully handle being abruptly powered off by a timer. Stick to simple resistive or motor-driven loads — lights, fans, heaters, pumps.
See how Outlet Timer compares to other home products.
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