eGear Jolt USB Mini Rechargeable Flashlight Recharges in any USB output device such as laptops or dashboard USB connectors. Glows red when charging, green when fully charged. Steady-on and flashing modes, with 2 hours of use at 25 lumens in steady mode. Will provide usable light with only a few minutes of charging. Case material is rubberized, soft grip ABS plastic. Cap covers USB when not charging. Size H x D: 2 inches x 0.7 inches Weight 0.6 oz. Bulb: 0.5 watt LED. Splash resistant. Battery is rechargeable lithium, lasting for thousands of charges.