I use the rover while on a lift working in network cabinets in a factory. I use the usb port to charge my phone. Where the rover has strong magnets, I decided to make a phone mount that connects to the twist to lock cap for the bottom of the rover light. There is a pilot hole in the ball, but I left out the screw holes for the base becuase I couldnt get the dimensions right. Feel free to remix and add the holes, or redesign the actual ball.