The Streamlight TLR-1 HL Rail Mounted Tactical Light is a virtually indestructible and intensely bright tactical light that attaches to nearly any weapon system in seconds. Perfectly sized for handguns or long guns, the TLR-1 HL is powered by two  CR123 batteries to provide a bright 800 lumens of light. Whether in the line of duty or simply protecting the homestead, you can trust the TLR-1 HL.