Many advantages made Traser H3 the leading supplier of mission wrist watches worldwide for emergency, security and military services, but also for outdoor activist and sportsman. The US Army noticed the superiority of this new light source. It has been officially issued to the US troops more than 300.000 times. Most of the Traser H3 watches have small tritium valves that guarantee long and extremely powerful light. The tritium gas light source is about 100 times brighter than the conventional luminous material. It is secure, that no radioactivity can get out of this closed system. The high pressurized vacuum valves are resistant against water, oil and most of the other corroding materials. Even extreme temperatures cannot harm them ( -170°C up to +400°C), and even a temperature shock cannot influence the TGQL lightening system.