Find similar products here

Maplin 12V Modified Sinewave 4000W Inverter


About this product


  • 4000W continuous output to power a range of household appliances
  • Modified sinewave output to power chargers, heaters and air conditioners
  • Two 240VAC mains sockets to power devices without additional converters

Product overview

• 4000W continuous output
• Modified sinewave output to power chargers, heaters and air conditioners
• Two 240VAC mains sockets to power devices without additional converters
• 12VDC from car batteries using the included battery clips
• Weighing 10.4kg, this inverter is mountable and measures 500mm x 169mm x 152mm

Power your mains devices from a car, truck or solar panel
This Maplin 12V 4000W Inverter is a converter that connects to a sealed lead acid (SLA) battery that is usually connected to a car, a truck or a solar panel. The inverter can connect to the battery either through a car accessory plug or by clipping directly to the battery. A mains powered device can then be plugged directly into the inverter’s AC socket. Inverters vary in capacity and can power devices of up to a specific wattage. Inverters can be split into two categories: pure sinewave and modified sinewave.

Power several devices at once
This inverter connects to the car battery directly using the included alligator clips and can be mounted within your car without becoming a hazard. The inverter can power several devices at the same time using its twin mains power sockets, with a combined power of 4000W such as a television, a fridge or a heater. It is highly efficient, converting over 85% of its energy into output power. The inverter includes shutdown protection to power down the inverter if the battery power drops below a certain level.

Power your everyday devices

This 12V 4000W inverter is a modified sinewave inverter which produces a stepped approximation of a pure sinewave inverter, making it easier to produce. A modified sinewave inverter can power devices such as laptops, printers and chargers, although some items may pick up interference from the inverter. A solution for this is to upgrade to a pure sinewave inverter. A pure sinewave inverter is used to power sensitive electronic devices such as power motors, power tools, clocks or microwaves.





4000W Modified Sinewave Inverter

Sinewave Type:

Modified Sinewave

Operating Specifications

Output Power:


Peak Output Power:


Input Voltage:


Input Current:


Output Voltage:


Output Frequency:


Dimensions & Weight










Cable Length:


Product Specifications

Low Battery Protection:


Would this inverter run a 1800w pressure washer?

Asked by: JS88
Unfortunately i am sorry but the item in question doesn't support use in you intended application.
Answered by: darren cordon
Date published: 2017-02-14

Could this run a 1000w microwave from a 12v output in my truck?

Asked by: Hgvstu
Sorry this is not suitable for that usage.
Answered by: Les
Date published: 2016-12-06

Hi just got this product, it's needed to run tumble dryers so I can test and repair them, pls could you tell me how many amps it draws

Asked by: Joe1975uk
It would depend on the load you are placing on the unit, at maximum it would be roughly 16.7A although this may not be exact due to inefficiencies. However if this is for testing something with a high power motor a modified sinewave would not be suitable, you would need a pure sinewave to prevent damage. The largest pure sinewave inverter we have available is this:
Answered by: Gareth
Date published: 2016-03-18

How long would an ordinary car battery power devices using the output of 4000watts?

Asked by: Ashl
It would depend on the size of the car battery in amps and the wattage of the item.
Answered by: Billy
Date published: 2016-02-02

12v or 24v input?

Asked by: Grumpy1959
This inverter is 12v
Answered by: Darren
Date published: 2015-08-04

what are the dimensions of this inverter, and on the front of the unit it shows a plug for a remote control does this come with the unit or does it need to be bought seperate if so how much is it.

Asked by: nelly
This item is 500 x 169 x 152mm a link to the remote is below
Answered by: Dominic
Date published: 2015-07-17
  • y_2018, m_4, d_24, h_11CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.8
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_6
  • loc_en_GB, sid_A58LZ, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_maplin-en_gb