Swann 720P HD Bullet Security Cameras - Pack of 4, Pro-T850,White (Compatible with Swann 4500 Series) - SRPRO-T850WB4-US PRO-T850 - 720P Multi-Purpose Day/Night Security Camera 4 Pack - Night Vision 100ft / 30m Seeing is believing with 720p HD Cameras (1 Megapixel, equivalent to 1000TVL) perfect for most locations around home or business Latest infrared cut filter for amazing night vision to 100ft/30m for amazing clarity in low light Sturdy polycarbonate camera construction suits indoor & outdoor applications with IP66 rating for any weather conditions These cameras can only be used in combination with Swanns Professional HD Digital Video Recorders including DVR4-4500, DVR8-4500 or DVR16-4500 for cutting-edge surveillance in HD All installation accessories are included.