When to purchase a modified sine wave inverter? by e Marine Systems | Tuesday, March 24, 2015 | 0 comment(s) When to purchase a modified sine wave inverter? It’s awful tempting to purchase a modified sine wave (MSW) inverter when you look at the price comparison (3 to 1 typically) to a true (pure) sine... no categories. modified sine waveinvertersmodified sine wave inverterpure sine wave invertertrue sine vs pure sine Read More