KLARUS, the inventor of the professional dual-switch flashlight in China, has been designated as the supplier for over 58 countries' agencies. It has exclusive magnetic charging technology and a tail 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 classic from KLARUS, the tail dual-switch design quickly realises the functions of One-Key High and One-Key Strobe, making it outstanding in the emergency rescue, and outdoor fields. The renowned XT11 professional flashlight, with its innovative dual-switch tail cap, secured the top spot in the world-famous flashlight brand rating by Tac Gear, a famous German magazine. The XT21X, a triple-switch professional flashlight launched after iterative upgrading, became the designated equipment of the Hong Kong Special Operations Unit in 2019. Its innovative triple-switch configuration enables quick activation, making its performance truly impressive.