Ansmann 1600-0069 Agent 5 Filter Set Set of colour plates in three different colours. Fits the Agent 5 series flashlights Green is especially useful in sharpening outlines. For self-protection it provides an added glare effect and is invisible to wild game. Red is used in fishing as it attracts young fish and does not reflect of the water surface. Blue is well-suited for use with law enforcement as it increases visibility of sweat and blood. It also aids in tracking of animals.