That says it has a brightness of 2400 ISO Lumens, which roughly translates to about 600 nits according to this site[1], (although my back of the napkin math of 3.426 nits to lumens would give a worse 408 nit rating, but I think this page probably did a better job, so we'll go with that). This seems pretty low compared to even OLED TVs, which are of course worse than LCD TVs. I may be comparing peak brightness to average brightness though, hard to get a clear idea here. But, if my understanding is correct, with a project you'll also miss out on true blacks, right?
1. https://cybershack.com.au/cybershack/nebula-cosmos-laser-4k-...