Panasonic 32L Inverter Microwave Oven. Inverter Technology delivers graduated power sequences continuously so food is cooked more evenly, with more delicious results. LED illumination makes the oven interior brighter, so it's easier to check the conditions inside. Panasonic inverter Turbo Defrost technology is an advanced microwave sequencing system using the inverter continuous-power delivery feature. Each ingredient has a cooking temperature that suits its flavour, texture, and nutritional value. The inverter optimizes the heating power for each kind of cooking.