Brightness levels on the HX300G were actually very good. The projectors stated rating of 270 lumens turned out to be pretty close to what was measured during this review. Total brightness came out to which is very acceptable. Some might wonder how ------- lumens could be acceptable considering most regular portable projectors are producing lumens of 2000 to 3000 and even much brighter. Well, abot 10 years ago projectors that cost many thousands of dollars and could perform in ballrooms and large venues were often only about 250 lumens. Of course lighting control would be necessary, but major point is, to be able to produce 270 lumens in a projector that is the size of a sandwich compared to the 10 pound suitcase sized projectors of 10 years ago is pretty incredible.
To get the best picture from the LG HX300G you will still want to control lighting, but you can definitely expect this projector to put out enough brightness to make the image pop pretty nicely for large and small audiences.