What is mx-991u?

As an AI language model, I do not have access to the internet, but I can provide general information about the MX-991U. It is a military-grade flashlight manufactured by the U.S. military and widely used by soldiers and law enforcement agencies. The flashlight features a durable, lightweight aluminum body, and it is waterproof, shockproof, and corrosion-resistant. It operates on two AA batteries and offers a maximum output of 50 lumens, making it ideal for tactical situations and emergency situations. The flashlight has a long runtime and can also be used as a signal light with its flashing mode. It is a reliable and trusted tool for anyone who needs a dependable flashlight in their equipment kit.