What can I spray with it?

It handles thinned latex, stains, sealers and most water-based finishes. It is best on trim, doors, fences, furniture and small wall areas rather than whole-house interiors.

Do I need to thin the paint?

Usually yes for thicker paints. HVLP units need a consistency close to milk so the nozzle can atomize it; check the paint maker's thinning guidance and test on scrap first.

How long does the battery last?

Runtime depends on the paint and the setting, and batteries drain faster on thick material. Expect shorter sessions than with a corded sprayer, so keep a spare battery for bigger jobs.

Is it better than a roller?

It is faster and smoother on trim, doors and fences, and it reaches spots a roller struggles with. A roller still wins for large flat walls and for paint you don't want to thin.

Plan on flushing the gun, cup and nozzle with the right solvent after each use. Rinse promptly, especially with latex, or dried paint will clog the nozzle.