Best 12v to 240v pure sine wave inverter Uk

UK's best pure sine wave inverters on the market are there to provide needed power when you need it. They are the lightweight portable versions of an electrical plant for use as a temporary power supply when using your caravan in locations that do not have electrical power. Their weight varies from 0.6 kg to 3.4 kg minus the power source ( battery bank).

This post contains affiliate links. As an Amazon associate I earn from qualifying purchase (at no extra cost to you).

In simple terms a pure sine wave inverter will convert direct current to alternating current that everyone uses at home. The advantages of having this bit of kit are obvious, it lets you use electric gear and gadgets that only operate off an alternating current power supply. Before you buy any new electrical gear if you do intend or might use of it in your campervan make sure it will also run of 12volts. Most motorhome enthusiastic have a range of 12 volt devices for example a 12v caravan TV or a simple 12 volt microwave. That is great, but you may also have devices that still need AC power, air con for example.

The main purpose of this article is to help you choose the 12v to 240v inverter that will let you run all key AC appliances. Appliances that are only used occasionally need not be included in your calculations.

The Best Caravan Pure Sine Wave Inverter

Bestseller No. 1
BESTEK 300W Pure Sine Wave Power Inverter DC 12V to AC 230V 240V with 4.8A Dual Smart USB Ports Car Adapter
  • A Real Powerful Inverter: BESTEK inverter provides 300 watts continuous DC to AC power and with 2 USB charging ports....
  • Smart Charging: the power inverter is equipped with 2 Smart USB charging ports, automatically detect your devices to...
  • Ultra Compact and Lightweight: Travel-sized design for space-saving, 26 inch cigarette lighter plug makes the power...
  • Multi Protection: built-in 40 amps fuse and full-protection with short-circuit, low-voltage, over-charge, over-voltage,...
SaleBestseller No. 2
BESTEK 500W Pure Sine Wave Power Inverter DC 12V to AC 230V 240V with 4.2A Dual Smart USB Ports Car Adapter
  • 【A Real Powerful Inverter】BESTEK inverter is an inverter product that can convert 12V DC into 230V AC stable output...
  • 【Multifunction】The inverter is equipped with two binding posts, two 0~2.4A USB ports and a UK standard that can...
  • 【Multi-Protection】In order to protect the safety of customers, two 40A fuses have been added to design protection...
  • 【Durability】The product is made of aluminum alloy, durable and not easily damaged, especially suitable for outdoor...
Bestseller No. 3
Power Inverter Pure Sine Wave-1500 Watt 12V DC to 230V/240V AC Converter-2AC Outlets Car Inverter with One USB Port-5 Meter Remote Control And Two Cooling Fans-Peak Power 3000 Watt
  • ✅ABSOLUTELY PURE SINE WAVE INVERTER - Converts 12V DC to AC 230V/240V household wall power with continuous 1500 Watts...
  • ✅Delivers ultra-clean Pure Sine Wave output that is identical to AC power supplied by your utility ,improves AC...
  • ✅Uses The Control with the light display for better monitoring actual working status (battery level indicator,audible...
  • ✅Protection Features: over temperature shutdown ,automatic overload protection , over voltage and under voltage...
Bestseller No. 4
Novopal Power Inverter Pure Sine Wave-1500 Watt 12V DC to 230V/240V AC Converter-LCD Display 2AC Outlets Car Inverter with One USB Port-5 Meter Remote Control And Two Cooling Fans-Peak Power 3000 Watt
  • ✅ABSOLUTELY PURE SINE WAVE INVERTER - Converts 12V DC to AC 230V/240V household wall power with continuous 1500 Watts...
  • ✅Delivers ultra-clean Pure Sine Wave output that is identical to AC power supplied by your utility ,improves AC...
  • ✅LCD Display-indicates the operating status, such as battery power supply, battery input voltage, AC output voltage,...
  • ✅Protection Features: over temperature shutdown ,automatic overload protection , over voltage and under voltage...
Bestseller No. 5
Novopal 2000W Pure Sine Wave Inverter 12V to 230V 240V Car Converter Power Inverter with LCD Display 2AC Outlets and USB Port-Remote Control for Motorhomes,Truck,Boat,Camping,Household,Van
  • 🚗🚗NOVOPAL TRUE PURE SINE WAVE INVERTER - Converts 12V DC to AC 230V 240V household power by continuous 2000 Watts...
  • 🚗🚗 DIGITAL LCD DISPLAY - Can show your battery power supply, battery input voltage, AC output voltage, output...
  • 🚗🚗REMOTE CONTROL AND SMART COOLING FANS - Configure a 5 Meter cable remote controller is more convenience for you...
  • 🚗🚗 WIDE APPLICATIONS - NOVOPAL Caravan power inverter for most of appliances like...
Bestseller No. 6
BESTEK Pure Sine Wave 1000W Car Power Inverter DC 12V to AC 230V 240V Voltage Converter with Dual USB charger and Smart LCD Screen
  • 【BESTEK Power Inverter】UK's #1 power inverter brand. Supply 1000W continuous DC to AC power, featuring 2 AC outlets...
  • 【Pure Sine Wave Inverter】Superior to Modified Sine Wave Inverter, greater drive capability, better protection to...
  • 【Digital LCD Display】Can show you the input/output voltage, output power and indicate protection in time, convenient...
  • 【Silent Cooling Fan】The cooling fan will automatically runs at different speed according to power load and...
Bestseller No. 7
Novopal Power Inverter Pure Sine Wave-1000 Watt 12V DC to 230V/240V AC Converter-LCD Display 2AC Outlets Car Inverter with One USB Port-5 Meter Remote Control And Two Cooling Fans-Peak Power 2000 Watt
  • ✅ABSOLUTELY PURE SINE WAVE INVERTER - Converts 12V DC to AC 230V/240V household wall power with continuous 1000 Watts...
  • ✅Delivers ultra-clean Pure Sine Wave output that is identical to AC power supplied by your utility ,improves AC...
  • ✅LCD Display-indicates the operating status, such as battery power supply, battery input voltage, AC output voltage,...
  • ✅Protection Features: over temperature shutdown ,automatic overload protection , over voltage and under voltage...
Bestseller No. 8
Power Inverter Pure Sine Wave-2000 Watt 12V DC to 230V/240V AC Converter-2AC Outlets Car Inverter with One USB Port-5 Meter Remote Control And Two Cooling Fans-Peak Power 4000 Watt
  • ✅ABSOLUTELY PURE SINE WAVE INVERTER - Converts 12V DC to AC 230V/240V household wall power with continuous 2000 Watts...
  • ✅DELIVERS ULTRA-CLEAN PURE SINE WAVE OUTPUT- that is identical to AC power supplied by your utility ,improves AC...
  • ✅REMOTE CONTROL- Uses The Control with the light display for better monitoring actual working status (battery level...
  • ✅PROTECTION FEATURES-over temperature shutdown ,automatic overload protection , over voltage and under voltage...
SaleBestseller No. 9
EDECOA Pure Sine Wave Power Inverter 1500W Peak 3000W DC 12V to 240V AC with Remote Controller 4.2A Dual USB Ports
  • WHY CHOOSE IT: This 1500w pure sine wave inverter provides household power on the go along with a compact and...
  • FEATURES: a handy Remote Controller for switching off/on when the inverter is mounted in an inaccessible position....
  • POWER: Continuous output power: 1500 Watt. Max Output Power: 3000 Watt (<10ms).
  • HIGH TECH MULTI-PROTECTION: Short Circuit, Over and Under Voltage, Reverse Polarity, Overheating, Automatic Voltage...

Last update on 2021-06-18 / Affiliate links / Images from Amazon Product Advertising API

What is a pure sine wave inverter?

This is an electronic device that can provide the user with the same type of power they have at home being 230 VAC. The typical electrical power source for a converter is a 12 VDC vehicle.

Modified square wave inverter vs Pure sine wave inverter?

When looking for a portable power source the consumer will notice both pure sine wave and modified square wave converters. The pure sine wave converters is a continuous source of power that is smooth much like a wave in the ocean going up and down. The modified square wave is choppy in the way power is provided. The power is on then off then on then off. This chopping causes an annoying hum to develop from the monitor in most instances and most devices cannot operate with so much time with zero voltage being supplied.

The modified square wave inverter has proven to only be reliable to power devices like a computer that has capacitors to compensate for the inconsistent supply of power. This type is tempting to purchase since they generally are available at 50% less expensive than the pure sine wave converters. If you need to operate electrical appliances in your caravan, a pure sine wave converter is the only one that can handle the task required by the devices.

How do I power my pure sine wave inverter?

There are several ways to power a pure sine wave inverter. This will let you use it when no other type of electrical connection is available. 

  • The most common is the battery used to start the engine for the vehicle you are in.
  • Solar panels can also be used that are connected to a leisure battery that will supply a converter with power. 
  • Leisure batteries in the vehicle are another option. This is a second battery separated and not used to start the engine of the vehicle.

What is the right size inverter for my motorhome or caravan?

It is possible to have all of the electrical appliances in your caravan on at the same time, but this is the exception and not the rule. The most common items to run continuously are the refrigerator, lights and for many the TV. The refrigerator and TV will both have an initial surge of power needed when they startup. What should be remembered is that the refrigerator will run in cycles going on and off over time so always keep the surge level it will produce available. If a refrigerator is rated at 600 watts, the surge will be approximately 1200 watts. A TV will only have a surge upon the initial startup. Lights, fans and most other appliances do not require extra power upon startup. 

The level of power provided is dependent on the pure sine wave inverter model that you choose to invest in. At the lower end, you can have a constant 300 watts which could peak at 700 watts while at the upper end you can have 2000 watts with a peak of 4000 watts for a limited amount of time. The time is dependent on how much power you use and the capacity of your power source( battery bank).

Do I need a 12V inverter for my caravan?

Power inverters let you go off the beaten track and still have the comforts of home. In one sentence a power inverter will let you run mains AC appliances from your 12V leisure battery. So if you wish to be able to have that camper independence then yes you need the best pure sine wave inverter that would supply and copy with power surges of your caravan AC gadgets and electrical devices

Will a power inverter damage my caravan leisure battery?

The leisure battery is important and you need to prevent damage and inconvenience that a full discharging may cause. The good news is that a good pure sine wave inverter will sound an alarm and even cut it self off to prevent this happening. However, if this does happen be aware you will need to switch off thethe on/off switch. If left in the on position it will continue to draw a small amount of power from your leisure battery.

1500W 12V PURE SINE WAVE POWER INVERTER by EDECOA

This12v to 240v  pure sine wave inverter can provide a continuous supply of power at 1500 watts with a peak of 3000 watts 230 VAC at 50 Hz. To obtain the surge level there must be sufficient power reserves in the 12V battery pack connected by power cables to provide it. This device provides power efficiency at 90%. 

To help make this converter quieter than most is the use of silent interior fans to keep it cool which reduces the noise most converters make. 

With 1500 watts of continuous power, it can be hooked up to the main electrical board in a caravan, just make sure you do not overload it when turning on appliances. A refrigerator rated at 1500 watts will use 3000 watts at startup.

This pure sine wave inverter has 2 standard UK plug-in receptors and two 2A USB ports that can be used to provide power to the devices you want to use. This device has an LCD display showing the power reserves available to the user.

Safety features include automatic shut offs when overheated above 75C, under and over voltage along with when reverse polarity is detected. There is also an automatic voltage regulator and an intelligent power management system in active mode when the converter is operating. This device has an on/off switch on the unit and a remote control device to kill the power.


This 12v to 240v inverter pure sine wave inverter by Bestek is a 300 watt continuous power supply with a 360 watt max possibility. It is also the easiest to use when needing a small amount of power while you are off the grid. This device has a constant power supply of 300 watts with a peak of 700 watts at 230 VAC at 50 Hz. There is no efficiency rating on this converter.

The converter manufacturer also has a modified sine wave converter that looks the same as this one and rated the same, but the power supply is not the same being a modified sine wave so it can’t be used for all devices.

This small device provides you with options of connecting it to the 12V power source. When 150 watt or less is to be used the cable that connects to what use to be the cigarette lighter socket can be used. The 150 watt limit is due to the 150 watt limited 10A fuse for this socket that is standard in the motor vehicle industry. If more power is needed cables can be used to directly connect it to the vehicle’s battery. These battery cables will have to be purchased separately.

This device has one standard UK plug-in receptor and two 4.8A USB port that can be used to provide power to the devices you want to use. This device has an indicator light showing the power reserves, green for power, red for no power.

Safety features include automatic shut offs when overheated or under and overvoltage is detected. This device has an on/off switch on the unit to kill the power. It does have a small internal fan, but it will still get warm to the touch. Avoid placing it next to warm objects or on the dash where the sunlight might heat it further. This converter also has a built in 40A fuse that can be replaced.


As in the name, this inverter provides a continuous supply of power of 2000 watts 230 VAC with at 50 Hz. When the power supply ( battery pack) is connected with power cables that have sufficient power reserves the peak power supply can provide up to 4000 watts to handle the surge upon starting an appliance. This is required for refrigerators, AC Units and like appliances. This device provides power efficiency of 90%.

Unlike other less powerful inverters, this one has enough power when the battery packs are fully charged to connect to the electrical mains in your caravan. This makes it possible to use the appliances in your caravan without having to run extension cords to each one. 

This 12v to 240v inverter has 2 standard UK plug-in receptors and one 2A USB port that can be used to provide power to the devices you want to use. There is no display showing the power reserves. 

The safety features on this converter include both a low power and high power automatic shut offs and alarms along with high temperature shut down at 60C so the converter will not become overheated. This will help to avert a short circuit or overload. There is one on/off switch on the converter so activating it or deactivating it is simple and a remote device to start and stop it is also provided.

To use the 12v to 240v inverter all that is required is to connect it to a charged battery pack and turn it on. Because this converter is at the upper end of possible power it can supply, it is one of the more expensive to purchase.


As the name suggests this pure sine wave inverter can provide 1000 watts of continuous smooth power of 230 VAC at 50 Hz. It has a surge peak of 2000 watts when there is sufficient power in the 12V battery pack connected by power cables. This is similar to the first device listed, but is half the power at near half the cost. This device provides power efficiency at 90%.

With only 1000 watts of power, the number of devices that can be powered up at one time will be limited. Fans 100W, TVs up to 200W, satellite TV receiver 30W, laptops 50W, desktops 400W, Mobile phone chargers 5W can be plugged in just do not exceed the 1000W limit.

This pure sine wave inverter has 2 standard UK plug-in receptors and one 2A USB port that can be used to provide power to the devices you want to use. There is no display showing the power reserves. 

The safety features on this pure sine wave inverter are the same as it more powerful cousin from above including both low power and high power automatic shut-offs and alarms. There is also a high temperature shut off at 60C so the converter will not become overheated. This will help to prevent a short circuit or overload. There is also one on/off switch on the12v to 240v pure sine wave inverter, so activating it or deactivating it is simple and a remote device to start and stop it.

Related Posts

Scroll to Top