It is China's most powerful laser weapon in the public domain (there are reports of more powerful but classified anti-satellite lasers), the LAG II is built by the Chinese Academy of Physics Engineering and Jiuyuan High Tech Equipment Corporation. Similar in size to the U.S. Marines' Ground-Based Air Defense Directed Energy On-The-Move, it is mounted on a wheeled, towed carriage that carries its turret, power components, which can be pulled by a light truck.
The USA, China, Russia and Israel are known to have active military laser programs.
Looks similar to 30 KW laser weapon the US has on the USS Ponce
China tested a laser to shoot down a drone in 2014.