If your laptop works on DC power – and most do – an inverter is not required. You can just plug the laptop into a solar power station like the Jackery Explorer 500and the laptop will charge. Solar panels produce direct current (DC) power, so if you can plug your computer into the solar system it. There are many differences between pure and modified sine wave, but the most important is pure sine resembles an actual sine wave, whereas the modified ones. All right, so your computer and other appliances will probably be all right with a modified sine wave inverter. But why do most manufacturers recommend pure sine. So the bottom line is most computers should be all right running from a modified pure sine inverter. There might be a few lines on the screen and a slight hum, but.