I know about these brands here but that wasn’t really the purpose of this thread.
The purpose was if anyone actually know a good one, brand including exact type that does meet (or come close to) my requirements and does have solid reviews (does not lie with their specifications etc.)
A brand that lies with their specs is for instance Black Diamond with their Icon headlamp claiming 500 lumens measured with ANSI method for 70 hours on 4 x AA batteries.