KLARUS, the inventor of the tactical dual-switch flashlight in China, has been designated as the supplier for over 58 countries' military and law enforcement agencies. It has exclusive magnetic charging technology and a tail tactical dual-switch patent. Some of the products have been featured in Hollywood films and TV series such as The Hunger Games, The New Mummy, and Westworld.

The XT series, a tactical classic from KLARUS, the tail tactical dual-switch design quickly realises the functions of One-Key High and One-Key Strobe, making it outstanding in the military, emergency rescue, and law enforcement fields. The renowned XT11 tactical flashlight, with its innovative dual-switch tail cap, secured the top spot in the world-famous flashlight brand rating by Tactical Gear, a famous German tactical magazine.The XT21X, a triple-switch tactical flashlight launched after iterative upgrading, became the designated equipment of the Hong Kong Police Special Operations Unit in 2019. Its innovative triple-switch configuration enables quick activation, making its performance truly impressive.