【150° Wide Angle】-- This IP camera lens supports 150° wide angle, which gives you a full vision. Makes whole situation under control. | 【2.5mm F-number High Definition】-- This IP camera lens adopts high F-number up to 2.5mm to give you a super clear vision. | 【2.1mm Focal Length】-- Adopting 2.1mm focal length to make every detail so clear that no message will be missed, thus preventing danger. | 【 IR Lens】-- This CCTV lens supports night vision which gives you a 24-hour protection. So reliable. | 【Precise Compatibility】-- The M12*0.5 lens is widely suitable for both 1/3'' & 1/4'' CCD chips with no stuck or conflict.