Barnett Hyperflite Lighted Nock 3 Pack Red. These lighted nocks use an ultra-bright LED to enhance visibility in low-light conditions and simplify arrow recovery. Specifications for Barnett Hyperflite Lighted Nock: Manufacturer: Barnett Color: Red Illumination Type: LED Nock Type: Hyperflite Fabric/Material: Plastic Illumination Color: Red Quantity: 3 Pack Features of Barnett Hyperflite Lighted Nock Ultra Bright High Visibility Red LED Easy To Replace Battery LED Illuminates Instantly As Arrow Is Shot Compatible With Small Diameter .204" Hyperflite Arrows Only Compatible only with White And Red Vanes Hyperflite not compatible with White and Orange Vane Hyperflite arrows Package Contents: Barnett Hyperflite Lighted Nock Barnett BAR20058: Hyperflite Lighted Nock 3 Pack Red