The E18R V2.0 is an ultra-compact EDC (every day carry) flashlight with outstanding performance for a flashlight this small. Powered by one included 16340 li-ion battery, the E18R V2.0 emits a maximum of 1200 lumens a distance of 479ft (146m). The single side switch (no tail switch) controls six lighting modes including a moonlight mode for up-close tasks. Recharge the flashlight via its USB-C port when the battery level indicator indicates the battery is low. The E18R V2.0 is built tough with durable high-strength, oxidation-resistant aluminum and is waterproof underwater to 6.6ft (2m). Magnetic tail and a two-way body clip round out the features of this awesome little EDC flashlight.