GP-ISW700 / GP-ISW700 / GP-ISW1500 / GP-ISW2000 / ISW3000-12 / Pure Sine Wave Inverter / Overview : Voltage & Temperature Performance A Comparison of Voltage & Temperature Performance Products covered in this article: GP-ISW-700, GP-ISW-1000, GP-ISW-1500, GP-ISW-2000, GP-ISW-3000, GP-ISW-4000