NiteCore Flashlight LED - series, NC-SENSE CR 190 lumens (equipment)
The lamp is really useful as lamp keychain. CR123 lithium cells with long term (min. 1 1/2 hours), with 16340 batteries insanely bright (the Led Lenser M7RX can because what abschauen of power / size ratio), but the burn time is limited to about 30 m