The larger voltage converter is appropriate for supplying 12v DC to several 12v accessories. We recommend using it with one of our fuse boxes. The smaller converters are better suited to converting a single feed for a single purpose. For example, maybe your turn signals operate at a full 48v but you want to use a feed for when they are active to trigger your right side and left side wheel lights to flash amber along with them. The smaller individual converters are ideal for that.
