Prepaid only.Finally it is here, the Ultra-Superior Sinergy 1kVA / 12V inverter for homes and offices featuring all the latest technological improvement known. Built to exceed your expectation for an inverter of its capacity, it is designed to deliver a 99.99% performance efficiency, dwarfing other known brands in the area of performance, reliabilty and guaranteeing maximum protection for your appliances and batteries as well as being designed for a fully automatic operation. With its advanced Auto Sense Intelligent Control (ASIC) technology, you can be rest assured that you are in charge and everything is under your control.Finally it is here, the Ultra-Superior Sinergy 1kVA / 12V inverter for homes and offices featuring all the latest technological improvement known. Built to exceed your expectation for an inverter of its capacity, it is designed to deliver a 99.99% performance efficiency, dwarfing other known brands in the area of performance, reliabilty and guaranteeing maximum protection for your appliances and batteries as well as being designed for a fully automatic operation. With its advanced Auto Sense Intelligent Control (ASIC) technology, you can be rest assured that you are in charge and everything is under your control.