This Alfatronix convertor, is the ideal solution on board, for running 24v equipment from a 12v system (12v input 24v output) This convertor is ideal for use in the marine world, providing a stable output voltage as well as providing galvanic isolation for a variety of applications. The unit is IP53 rated meaning there are no ventilation holes to permit stray objects, dust or water to enter the unit. With fast and easy installation using the click and fix mounting clip, the unit consumes an off load current of less than 15mA, most likely being less than the self discharge of your battery. Convienient LED light indicates when there is an output from the convertor. Dimenions of the unit are: 167mm x 87mm x 50mm.