These high efficiency power inverters use a modified sine wave to power 230V mains equipment from a 12V or 24V battery or DC power supply. Perfect for use while camping, in commercial vans/lorries, or as a means to convert charged batteries for back-up power. Key features include low/over voltage input protection, short circuit, overload and overheat protection, a built-in 2.1A USB socket, and over 85% efficiency. The soft start feature minimises inverter shutdown when using large inductive loads. It also includes LED and audible fault indicators. This inverter has an output voltage of 230Vac, 50Hz and a USB output current of 2.1A. It comes in a pack of 1 and has dimensions of 16.80cm x 16.80cm x 40.50cm, weighing 4.64kg.