Has any one of you tested the runtime on Fenix Hp16r headlamp?

Using Eneloops nimh?

I’m specifically interested in the 400 lumen flood mode

The web site says it can do that for 8 hours but I’m sceptical, I have a feeling the thing can do 400 for 10 minutes then step down to 160 for 4 hours the again step down to 30 lumens for the next 3-4 hours.

Also the runtimes stated on the website are using the 3000 mah battery pack, I’m planning on using Eneloop professionals 4 x 2500 mah AA’s