Designed for professional applications, they use the Sinumax technology ensuring the necessary power but with limited weight and size. Sinumax is also compatible with power peaks during the starting phase required by devices such as refrigerators, electric motors and similar, while traditional 'switching' inverters don't manage these peaks in an optimum way.Technical characteristics: aluminium frame, forced ventilation with temperature sensor.Protections for short circuit, overload, high or low battery voltage with alarm, high temperature.