Streamlight's Thunder Ranch Illumination System was developed in conjunction with Clint Smith and the staff at Thinger Ranchm America's leading firearms training facility. Thunder Ranch Illuminating System is a tactical lighting system that will enable you to navigate in low light areas with confidence. Included in this system are the TL-2 LED Tactical flashlight with lithium batteries, Key-Mate LED light for backup and emergeny light, the innovative Tiget Ring deployment and shooting grip retention system, and green filter and flp-up lens cover. The Thunder Ranch Illumination System also features a DVD featuring Clint Smith, Director of Training at Thunder Ranch. Whether you are a novice just beginning to shoot or a seasoned pro, you are sure to learn something new from this DVD that just may save your life!