Streamlight Nano Light Keychain Flashlight
Small enough to disappear on a keyring but bright enough to find a dropped socket under a seat or check a fuse box in the dark, which a phone flashlight app does clumsily with a battery drain to boot. Skip it if they already carry a headlamp or a multitool with a built-in light, since this is redundant rather than additive.
- Fits on a keyring without adding noticeable bulk
- Uses a replaceable coin-cell battery instead of needing a recharge
- Output is fine up close but too weak for anything at a distance