Modified sine wave inverters are very affordable. Using a more basic form of technology than pure sine wave inverters, they produce power that is perfectly adequate for powering simple electronics, like your laptop. Modified inverters are best suited for resistive loads which do not have a startup surge. Pure sine wave inverters use more sophisticated technology to protect even the most sensitive electronics. As a result, pure sine wave inverters produce power which equals – or is better than – the power in your home. Appliances may not function properly or may be permanently damaged without the pure, smooth power of a pure sine wave inverter.