Isolated Power Module 4 Pins DC-DC Converter In 10-16V Out 12V 1W Description: This is a DC to DC converter that provide an excellence power sources for your application where an isolation is necessary. One of well known application is to apply this module to a digital current meter to avoid common ground effect, especially for automobile such as a car, a boat, and a bike. Modle: VB1212LS Power: 1W Very easy to install Size: 20 x 6 x 10mm \/ 0.79 x 0.24 x 0.39inch Package included: 1 x Isolated power module 12V