Notice this when searching the web:
http://www.hervietnam.com/Dien-dan/threads/25513-Den-pin-sieu-sang-tang-pin-xac-tiet-kiem-80k-
It show on the 1st post they have a 5XML 4000 lumens price at $5000000 vnd = around $240 USD
the spec says it uses 5 18650 ( or 26650- wow!!!) and comes with 5 18650 rechargeable battery.
Wonder how the Vietnamese got it 1st ?