Now that your weapons are mounted with their lighting systems, various filters or covers may be needed. Think of hunting deer in the pre-dawn light: a bright white light will have two negative effects `” it will degrade the shooter's vision and it will alert the deer to your presence. However, with a high quality red filter such as carried by DNA Tactical, both problems would be averted `” your vision would stay sharp and the deer would not be alerted to your presence.