The 1" Red/Blue/Green Filters from Sightmark are durable plastic light filters for the Sightmark P4 Triple Duty Flashlight.
- Filter Functions
Red: Maintains dark adaptation of eyes and improves long-range night vision capability. Also useful for spot lighting game without giving away your position.
Blue: Forensics and highlighting a blood trail.
Green: Map reading and protecting night vision, especially in situations requiring less light intensity.