Golight Radioray Covert Infrared lens securely positions over the bulb to ensure that all visible emitted light is blocked. This prevents oncoming traffic, animals, etc. from seeing the visible light. You will need night vision goggles in order to see objects at distance with this infrared lens on the Golight spotlight. This IR cover includes a new bezel (lens holder). The operator must replace the existing lens holder. This is done by removing the 4 screws that hold the lens holder to the lamp holder housing. The replacement bezel has a design that enables the operator to snap on and snap off the Infrared lens cover. On each side of the replacement bezel, there are two tabs. As the tabs are press outward, the lens is released. The beveled design of the lens holder enables traps all visible light.