A part of the review has been auto-translated.
Mega Hell für die Größe. Passt sogar ganz knapp 21700 rein.
Recently Convoy has significantly expanded its line of lanterns, and here I decided to buy a novelty - Convoy S21A. The S21A design is a complete copy of the S2's younger brother, only a little rundown. The quality of the hull's fabrication at a height, there's absolutely nothing to be bothered about. The hull is shock resistant and waterproof. The soldering is very high-quality, copper springs, clean boards, branded inscription - all this leaves the impression of quality goods. The distinguishing feature of this lamp is that it can be operated by batteries of the sizes 18650 and 21700. This does not require any inserts, adapters. The luminosity of this lantern is 1800 lumens, the current is 5 amperes. The SST40 LED is installed here. In case of overheating, the driver automatically reduces the current. This lantern is warmed considerably at maximum brightness, degrees to 45 exactly. The button is located on the end, works clearly. There are several modes of operation, and some modes can be disabled altogether. As a result, a powerful, bright lantern, qualitatively executed. I recommend!