The Fenix LD30 is a ultra-compact outdoor flashlight with tactical tail switch. Operated on a single 18650 rechargeable Li-ion battery (ARB-L18 3500U included), the flashlight emits five output levels allowing for various scene applications. 2 cold-resistant CR123A Lithium batteries can be used for emergency in place of the 18650. Additional features include two-position body clip and battery level indicator, which enhance daily usage in outdoor activities and industrial tasks.