Steiner DBAL-D2, Tac Light w/laser, Fits Picatinny, Co-Aligned Green and IR Laser, IR LED Illuminator, Black 9001 Manufactured with high definition" aspherical telescopic lens technology" the DBAL-D2 features a 2 to 30 degree adjustable illumination beam. This highly collimated beam significantly enhances night vision performance and offers an eye-safe means of illuminating distances greater than 1000 m. Military and law enforcement models also features an enhanced end cap" taking full advantage of the added switching capabilities of the full powered D2.