Smart plugs and outlets
Updated
What a smart plug can safely control, energy monitoring, outdoor plugs and in-wall outlets, with the load limits that matter.
A smart plug is the simplest smart device: it switches whatever is plugged into it on a schedule, by voice or from an automation. Check its rating, often 15 A at 120 V, and the appliance maker’s instructions before plugging in heaters, air conditioners or anything with a motor.
Energy-monitoring plugs double as a meter: they show exactly what a device costs to run. Use our energy cost calculator to turn watts into dollars.
Calculators 2
CalculatorDevice energy cost calculatorEnter watts (or amps), hours of use and your electricity rate to see what any appliance or smart device costs per hour, month and year, standby…CalculatorSmart plug standby savings calculatorPick the devices that sit in standby, say how many hours a day a smart plug would cut their power, and see the dollars saved per year, the plug’s…
Guides 8
GuideEnergy-monitoring smart plugs: what the numbers meanAn energy-monitoring smart plug reports watts, kilowatt-hours and cost for what is plugged in. See what the readings mean, where they fall short…GuideSmart plug and space heater: is it safe?A space heater is the hardest load you can put on a smart plug. Here is the math, what the heater manual and fire agencies say, and the safer ways…GuideOutdoor smart plugs: weatherproof ratings, GFCI and safe loadsAn indoor smart plug is not an outdoor smart plug. Here is how to read the weather rating, protect the outlet, stay within the load limit and keep…GuideHoliday lights on a smart timer: sunset schedules, loads and tripped GFCIsPut holiday lights on a smart plug or outdoor timer so they switch on at sunset and off at bedtime. Check the load, use outdoor-rated gear and…GuideWasher and dryer done notification: 4 ways to set it upAdd a notification to a washer or dryer with an energy-monitoring plug, a vibration sensor or a circuit monitor. Never put a smart plug on a 240 V…GuideWhich appliances can go on a smart plug, and which cannotLamps, fans and holiday lights suit a smart plug. Refrigerators, space heaters and medical devices do not. Check wattage, device type and failure…GuideWhich smart plug for kitchen appliances like a coffee maker or kettle?Check the plug’s 15 A / 1,800 W rating, the appliance’s watts and whether its switch stays on. Many kitchen appliances should not be started or…GuideWhich smart plug should you buy for Apple Home?Look for a Matter smart plug and check the hub and Thread requirements. Here is how to choose between Wi-Fi and Thread plugs, what energy…
Comparisons 5
ComparisonSmart plug vs in-wall smart outletA smart plug takes seconds and goes with you; an in-wall outlet looks cleaner but means wiring. Compare price, ratings, rental rules, GFCI and…ComparisonSmart dimmer or smart switch: choosing for each lightA smart dimmer adjusts brightness; a smart switch only turns a load on and off. The right one depends on your bulbs, the fixture and the room.…ComparisonSmart plugs or a smart power strip: which suits a living roomA smart plug controls one device. A smart power strip controls several outlets, often with surge protection. Here is how to pick for a TV stand,…ComparisonEnergy-monitoring plugs vs a whole-home energy monitorPlug-in monitors show one device at a time. A whole-home monitor reads your electrical panel. Compare cost, what each can see, installation and…ComparisonWi-Fi vs Zigbee smart plugs: which type to buyWi-Fi plugs need no hub but each one joins your router; Zigbee plugs need a hub but also strengthen a mesh for your sensors. Compare setup, range,…