Campervan inverters

Modified (quasi) sine wave inverters

Simpler electronics can be powered using a quasi sine wave inverter. Anything that isn’t a sensitive piece of medical equipment and which doesn’t have an AC motor (like a microwave or a fridge) will be able to run using this type of inverter. Any products with an AC motor receiving a quasi sine wave will run at a higher temperature, reducing their lifespan.

Some appliances may emit buzzing noises when being run by a quasi sine wave inverter. You may also notice reduced brightness from fluorescent lights. In addition, newer TVs can experience drops in framerate, brightness, and colour reproduction. Appliances with electronic timers or digital clocks may not operate correctly, as the square quasi sine wave interferes with the device’s normal timekeeping. Appliances which use electronic temperature controls (e.g. bread makers) or variable settings (e.g. light dimmers, variable speed drills) may also not work correctly. 

The main draw of quasi sine wave inverters is the significantly lower cost, compared to pure sine wave inverters of the same power. So if you’re on a tighter budget, these inverters can be a good option if you’re only looking to power basic electrical equipment such as lights, water pumps and perhaps a phone and laptop charger. We sell a range of quasi sine wave inverters from NDS Energy and Sterling Power in our webshop.