ITEM NAME:4X(Cpt-Ul-1 Dc/Dc Converter Regulator 12V To 5V 3A 15W Car Led Display PoweP1D5) 4X(Cpt-Ul-1 Dc/Dc Converter Regulator 12V To 5V 3A 15W Car Led Display PoweP1D5) 4X(Synchronous rectification,the conversion rate is greater than equal 96%,very low heat.With overload/over-current/over temperature/short circuit protective,and it can work in normal.(Input:DC 8-20V,(12V changes to 5V),Output:DC 5V,3A,15W.Type:Car Power Converter CPT. 1 x CPT Car Power Regulator). Light compact,convenient to use and transport,Non-isolated,synchronous rectification.