VvW DC Waterproof Step Down Converter 8-23v 12V to 5V 15W 3A Power Supply Module Powered by VvW advanced technology. Widely used in Car device, such as LED Display, Hard Disk Player, MP3, DVD, GPS, etc All epoxy sealed containers with Waterproof Housing; Non-isolated Input range: 12V (8-23v)Output voltage:5V/3A/15W.High efficiency:&gt;96%.Reliable, low heat dissipation max. 40; With overload / over-current / over / low voltage protection, stable performance. Light compact, convenient to use and transport; Auto recovery