Is this tree suitable for outdoor use?

Yes. The listing states it is suitable for outdoors, and the steel frame holds up better outside than plastic-only trees. Anchor it against wind and keep electric lights and wiring weather-safe.

How tall is it, and how wide?

It stands 120 cm, roughly 4 ft. It is a slim tree, so its footprint is narrow, which is the point: it fits hallways and small rooms where a full-width tree won't.

Does it come with lights or ornaments?

No. It is the tree only, so you add your own lights and decorations. At this height, use small ornaments and a short light string.

A steel frame with PVC branch tips. The steel gives it more rigidity than an all-plastic tree, and the PVC tips are the usual material for artificial trees at this level.

Is it a good pick over a full-size tree?

Only if space is tight or you want a second, smaller tree for an entryway or porch. For a main living-room tree, a taller, fuller model will look better.