It works with Eneloop (2XAA), which gives it a huge advantage right from the start. As a flashlight, it has great autonomy (16 hours +), it doesn't break, it's easy to use, very convenient to hold in hand, and provides satisfactory light for usual searches in the dark.

I bought the F.F.Group X3 LED TORCH from a physical store 2 months ago and I use it daily.
Very good construction and ergonomics in the hand, close to 50 lumens with a Lux-meter. It is waterproof, tested in the bathtub for 1 hour. It can withstand drops from 1 meter. Beam of light up to 10 meters. 18 hours with Duracell batteries!!! It has a convenient hand strap. It has a clear mirror and the beam of light is properly diffused. The only drawback is the button on the front of the flashlight, it would be better on the back. The most important thing is the 3-year warranty. For 3.5€, there's no discussion.