Brightness varies widely: many models produce tens to a few hundred lumens, while some lanterns and flashlights list outputs up to about 1,200 lumens.
Listings commonly note water resistance and impact resistance. Materials range from plastic and ABS to metal in some models for added durability.
They use a variety of batteries: D‑cell (zinc‑carbon or alkaline), AA and AAA alkaline cells, and lithium‑ion rechargeable batteries. Some models also combine battery power with solar recharging.
Many models emphasize portability: compact, pocketable, collapsible or foldable designs that are easy to store and carry for camping and travel.
Listings show three main power types: replaceable batteries (D, AA, AAA), built‑in rechargeable lithium‑ion batteries with USB charging, and some solar‑rechargeable models.
Heights in listings range from about 5.5 to 10 inches. Weights vary from around 1 ounce up to roughly 1.5 pounds, with several compact models weighing under a few ounces.
Some models offer USB‑in for recharging and USB‑out to charge phones, often including a charging cable. A few are solar‑rechargeable with an onboard battery and a USB‑C input.