Designed for professional photographers and videographers the led fresnel light cn 30f from nanguang features high power daylight balanced leds and the ability to be controlled wirelessly via a phone app or a 24g remote controller the incorporated fresnel lens allows focusing from narrow to wide beam 12 35 degrees giving the user complete control over the beam angle included with the head are three filters that adjust the colour temperature 3200k 4000k and 4800k and barn doors to fur