You're absolutely right to question that. When Soundcore markets this as an "outdoor" projector, they mean outdoor at night (e.g., a backyard movie night after sunset) — not during the day or in bright daylight.
Why "outdoor" on the name:
It's battery-powered and fully portable, so you can carry it outside easily.
It has a built-in handle and travel-friendly size.
It's designed for "mobile" use — meaning campfires, patios, or camping after dark.
But with 200 lumens:
You need complete darkness (or very near dark) to see a decent image even at 40-80 inches.
Any ambient light (streetlights, porch lights, moonlight on a clear night) will wash the picture out significantly.
So it's "outdoor" in terms of engineering (portable, cordless), not in terms of brightness performance.
For true outdoor daytime viewing, you need at least 1000+ lumens (like the NEBULA Cosmos Laser). The Capsule 3 GTV is strictly an evening/night outdoor projector.