Manufacturer promises "6-month back" and "3-year warranty" with "lifetime professional technical support" should something go wrong with the projector. The low price and small size make the Yaber Y31 worth considering for quick on-the-go projections.
https://www.notebookcheck.net/Popular-Yaber-Y31-1080p-mini-LED-projector-on-sale-for-just-205-USD-right-now.541257.0.html
I believe the reason projectors went from bulb right to laser is that the size of the light source is highly restricted, because of need for telecentricity, so something that could be powered by a single LED...is it gonna reach 30nits at 100"?