NiteRider Lumina Dual 1800 Headlight

I have owned other NR lights, no issues for over 3 years. Since I started riding early in the morning, I bought this super bright light so I can see when it's dark. The light works great but has died on me twice. When I charge it, it flashes red for hours. Eventually I check on it and unplug it then plug it back in and it turns blue. So I'm not sure if it has an issue or what. For the price I'm a little disappointed but Pro Bike's price was significantly better than everyone else's so at least I saved some money. I just reached out to NR so I hope I hear back from them.