Good catch on the Convoy L6.
Convoy can really makes affordable lights at budget prices, without sacrificng the quality.
My 2 Convoy S2+ have been dropped so many times by my wife and kid, but they are still working fine and the anodizing are still pristine.

Where did you get the 2 protected 26650 batteries for your L6?
Used to get my Li-ion batt from Banggood, HK Eqpt, eBay and even Gearbest before they stop shipping the batt to Malaysia