UltraBright Pop-Up Lantern
Pulls open to light a whole tent, folds flat to pack.
$35.95
Free shipping, and 30 days to send it back for a full refund if it isn't right.
What it's good for
360-degree light
Lights the whole space rather than throwing a beam one way, which is what you want inside a tent.
Solar top-up
A panel on the lid recovers charge across a day in the sun. Treat it as a top-up, not the main charging method.
Doubles as a power bank
A USB output will put some charge back into a phone — useful, though it costs you lantern runtime.