Unfortunately, this is one of the many cheap Chinese beamers, they are all worthless, the technical data is often wrong, the resolution is practically wrong too, if it says Full HD then the Chinese think that a Full HD signal can be fed in, what comes out is always something else, usually never Full HD. And the lumen specifications are also worthless, because they are lux and not lumens. Especially not ANSI lumens. I would advise against buying such a device, a usable Full HD projector is available from about 250 to 350 francs, but then it has to be a brand product. Something like this would work:
Philips Neopix Ultra 2+ (Full HD, 100 lm, 1.4:1)