Baldr S BL is a compact rail-mount light with a laser light combo. Both tactical lights boast an impressive 800 lumens of cool white light for various tactical situations, and a 100-lumen light for indoor use. Baldr S BL comes with an adjustable blue laser beam. Brighter than an ordinary red laser beam but not as glaring as the green laser beam in close-range uses. With a built-in 3.7V 380mAh rechargeable lithium battery, the Baldr S BL tactical light guarantees a maximum runtime of 140 minutes. The rechargeable tac lights fit seamlessly onto Glock and Picatinny rails, making them serve as Glock lights or Picatinny lights for firearms. Featuring a patented sliding rail mount. Baldr S BL tac lights with dual ambidextrous switches allow for easy momentary-on or constant-on activation with either hand.