Homevision Technology SEQ5402 Vandal Proof IR Dome Color Security, Silver Advanced image sensor produces high resolution video at 420 TV Lines of resolution 21 IR LEDs provide night vision range of up to 49ft (15m) in ambient lighting, and 35ft in total darkness 4.0mm - 9.0mm medium angle lens with a 36 Degree - 73 Degree diagonal field of view for improved object recognition