Thanks. I was wondering why my headlamp i bought to use for night grilling on my porch had a red light. Although it is actually a flashing red light IIRC. not sure what that is for.
The flashing light would be a signal, weather for biking, walking alongside the road, etc. But if your lamp has a flashing red light I'm fairly certain there's a mode where it just stays on for night vision. I never heard of having one without the other