Do these need an outdoor outlet?

No. They run on a solar panel and an internal battery, so you hang them where the panel gets daylight and skip the extension cord.

How long do they stay lit after dark?

Runtime depends on how much direct sun the panel receives that day. On a bright day they typically last into the evening; on overcast or shaded days, expect a shorter run.

Will they work in winter?

They work, but short days and low sun angle reduce charging. Place the panel where it gets the most midday sun and keep snow off it.

Are they bright enough to light a walkway?

Treat them as decorative accent lighting, not safety lighting. They add a warm glow to a porch or tree but won't brightly illuminate a path.

Can I hang them indoors?

You can, but the solar panel needs light to charge. Indoors they will only run as long as the battery holds from the last charge.

What comes in the set?

The listing shows the bell waterfall light fixture with its attached solar panel. Check the box contents for the number of bell strands and any mounting hardware.