I just got my LED auxilary lights from Mobile HID. I also picked up 2 red led combination marker lights at Wallmart. Just for laughs, I decided to try them out with a spare battery I have hanging around the garage. The big light from mobile HID worked fine, ( I only tried one), but I could not get either red marker light to light. Could both these lights be defective? Should I try something else? What would keep these smaller lights from working?