Used this power supply in combination with the VANTRUE E1 Lite WiFi Mini Dash Cam. Excellent and like the idea the camera is still powered (minimal current) when the car is parked so the park monitoring mode works and will record/store a video if there's an impact. The Power supply connecting to the Lighter option does not allow this. Very happy and user guide was clear; looked at some of the videos available on the manufacturer's website and was pretty easy to install. The most time consuming part was to find what fuse to piggy back.