Streamlight 69246 TLR-4 H&K USP Compact Rail Mounted Tactical Light with Integrated Green Laser and Wide Operating Range - 115 Lumens Green laser provides high visibility long-range targeting Features C4 LED technology and a 640-660nm red laser Ultra lightweight and compact Ambidextrous momentary/steady On-Off switch Serialized for positive identification This is a Class 3R Laser Product, 510-530 nm, Output &lt;5mW