Darkvim SK-C30 CREE R2 LED 1-mode AAA 1.2V-4.2V 200 Lumens Keychain Flashlight Exquisite and compact, fashionable and portable Mini-lens design, bright and gentle flood light Waterproof, It's water-resistant, use it in rainning, no problem Operate Voltage: 1.2-4.2V Batteries: Lithium 1X AAA(not included)