Smart plugs are one of the easiest ways to upgrade your home, but understanding smart plug usage is key to getting the most out of them safely and effectively. So, what can you plug into a smart plug, and what should you avoid?
What Can You Plug into a Smart Plug?
Smart plugs work best with everyday appliances that have a simple on/off switch. These are perfect for automation and remote control, helping you save energy and improve convenience.
Common appliances for smart plugs include:
- Lamps and socket-powered lighting
- Coffee machines and kettles (with a manual switch only)
- Fans and electric heaters (within power limits)
- TVs and entertainment systems
- Phone chargers and small kitchen appliances
- Hair straighteners and other devices that pose a hazard if left on
If you're wondering what you can plug into a smart plug, the rule of thumb is simple: if it plugs into the mains and is within your smart plug’s wattage limit, it should be compatible.
Smart Plug Safety: Know the Limits
When it comes to smart plug safety, always check the device’s power rating. Every smart plug has smart plug wattage limits, and exceeding these can cause overheating or damage.
Key safety tips when using smart plugs:
- Check the wattage rating before plugging in devices
- Avoid using smart plugs with extension leads
- Never exceed the maximum load capacity
Wiser smart plugs are designed with safety in mind, giving you reliable control while helping protect your home with a 13A current rating and 3kW maximum load capacity.
What Not to Plug into a Smart Plug
Equally important is knowing what NOT to plug into a smart plug. High-power or complex appliances can pose risks or simply won’t work correctly.
Avoid using smart plugs with:
- Washing machines and tumble dryers
- Refrigerators and freezers
- Microwaves and ovens
- Devices with digital or standby controls
- High-powered electric showers or heaters
These appliances often exceed smart plug wattage limits or require manual interaction, making them unsuitable for automation.
Make Your Home Smarter (and More Efficient)
Smart plugs are just one part of a connected home. Pair them with a smart heating system and smart TRVs to create a fully optimised environment. While smart plugs manage your appliances, Wiser’s smart radiator thermostats give you precise control over each room’s temperature.
Upgrade with Wiser Today
Ready to simplify your home and save energy? Wiser makes smart plug usage effortless and effective. Plug in, power up, and take control all year round with the Wiser Plug.
Don’t have a Wiser system yet? We’ve made it quick and easy to find the right kit for your home with the Wiser Product Selector.


