Does it really stay off during the day?

Yes. The dusk-to-dawn photocell blocks the motion sensor in daylight, so it only reacts after dark. That prevents daytime triggers from people and cars.

Can I adjust how long the light stays on?

Hold time is set on the fixture itself, not through an app. Expect a short on-time after motion stops, which suits entryways but may feel brief on a driveway.

Is it safe on a wall that gets direct rain?

It is IP65 and wet rated with a metal body, so it is built for exposed outdoor walls. Mount it with the sensor facing out and the cable entry sealed.

Will it work with my existing wall switch?

Yes. It wires like a standard outdoor wall light. Leave the switch on and let the sensor and photocell control it, or use the switch for manual override.

Does it need a hub or Wi-Fi?

No. The sensor and dusk-to-dawn logic run inside the fixture, so there is no app, hub or network setup. That also means no remote control or scheduling.

What kind of bulb or light source does it use?

The light source is integrated, so there is no bulb to swap. Check the rated output and color temperature before buying if you want a specific brightness or warmth.