I love the brightness of the NR systems. But for the price tag they should be flawless. I have a real problem with the way the power meter functions for the 6 volt systems. The NR website states that one does not have to fully discharge the battery. The meter in my system does not work properly (In my opinion) if I don't and may cause the light not to work for a full charge. I have already invested so much money in the system a change in brand would be costly. I'm starting to think they are not the only name in the game.