The S02 flashlight is a highly powerful and versatile flashlight that comes with many useful features, including a Cree XP-E LED light source that produces a maximum brightness of 300 lumens, making it an excellent choice for those in need of a bright flashlight. The body of the flashlight is made from 6061-T6 aviation-grade aluminum, which is both durable and lightweight, and it is shockproof and waterproof, so it can be used in all kinds of environments.

One of the best features of this flashlight is that it can be powered by either a 18650 rechargeable Li-ion battery or two CR123 lithium batteries, making it very convenient to use. The included 18650 rechargeable battery has a capacity of 2000mAh, which provides a running time of 2-3 hours on high mode, and it is equipped with a button top terminal that makes it easy to install in the flashlight.

The flashlight also comes with a charger that has a micro USB input, making it easy to charge the 18650 battery. The charger is capable of charging 3.7V or 3.8V lithium polymer and lithium-ion batteries, including 26650, 18650, 18500, 18350, 17670, 16340, 14500, and 10440 batteries. The charger has an input voltage of DC 5V 1.0A and an output voltage of 4.2V-0.5A or 4.2V-1.0A, and it features a HD LCD screen that displays important information, such as the charging progress and battery voltage.

The S02 flashlight is designed to be user-friendly, with a power button located in the tail cap that makes it easy to turn on and off. The flashlight also features five different operating modes, including high, middle, low, strobe, and SOS, which can be toggled by pressing the power button. The flashlight also comes with a lanyard wrist strap, making it easy to carry and use.

The Cree XP-E LED light source used in the S02 flashlight is an advanced technology that provides excellent performance, reliability, and durability. The XP-E LED is a high-power LED that is designed to provide superior brightness, efficiency, and color rendering, making it ideal for use in flashlights. The LED has a long lifespan, and it is designed to operate without requiring frequent replacements.

The S02 flashlight is an excellent choice for those who need a reliable, powerful, and versatile flashlight that can be used in various settings. Its durable and lightweight construction, combined with its many useful features, makes it a popular choice among outdoor enthusiasts, emergency responders, and everyday users alike.

In conclusion, the S02 flashlight is a well-designed and powerful flashlight that offers excellent performance and reliability. It is constructed from high-quality materials, and it is designed to withstand harsh environments. With its versatile power options and user-friendly features, it is an excellent choice for those who need a reliable and powerful flashlight. The included charger and rechargeable battery make it convenient to use, and the Cree XP-E LED light source provides excellent brightness and efficiency. If you're in the market for a high-quality flashlight that can perform in any situation, the S02 flashlight is definitely worth considering.