YONGNUO YN900 YN-900 LED Video Light Studio Light for SLR Camera Camcorder Canon Nikon Pentax Olympas + Two Ceaning Cloths For Camera lenses,Screens,Glasses and any other delicate surface Equipped with multi-channel wireless remote controller which is used to adjust the luminous intensity and control the switch of YN900. Remote Control with Mobile APP Adjustable color temperature :5500K luminance reducing/increasing button; 3200K luminance reducing/increasing button. 900 high quality LED lamp beads