Mini Flashlight The Superfire F3-L2 is a compact flashlight that you can take anywhere. It fits in your pocket, backpack, handbag, or even in a pouch. The flashlight is made of very durable aluminum, which is highly resistant to damage and wear, as well as optical glass. Fast Charging The flashlight is powered by a 18650 battery or three AAA batteries (batteries are not included and must be purchased separately). The battery can be charged very quickly with the included USB charger. Bright Light The powerful Luminus SST-40 LED provides a strong light and has a long lifespan, so you don't have to worry about frequently replacing the diodes. The flashlight has a brightness of 1000 lumens and a range of 300 meters. It features 5 lighting modes. Three modes are used to adjust brightness (high, medium, low), while the other two are used to activate the strobe function.