A++ Rated Frost Free Side By Side Fridge Freezer with No Frost technology by Inverter, & keeps food fresh & clean by Vitamin-Safe & Hygiene Active. This new model is amongst the most energy-efficient in the industry, thanks to Panasonics Inverter technology, U-Vacua vacuum insulation panel & Twin-Eco Cooling System. The Inverter technology for example, uses a system of sensors & microprocessors to select automatically from multiple possible power levels, allowing the product to run on minimal power overnight & at times of low usage, thereby conserving valuable energy.