Make sure this fits by entering your model number. YN600L II is equipped with multi channel wireless remote controller which is used to adjust the luminous intensity and control the switch of YN600L II. A mobile APP is provided on our official website. With this mobile APP, you can control this LED video light with your mobile phone. YN600L II adopts 600 high-quality LED lamp beads with chips of extra-large luminous area. In the same energy consumption, the luminous intensity is greater, the facular is more uniform and the service life is longer. YN600L II adopts YONGNUO proprietary LED driving technology which does great help to effectively avoid corrugation and stroboscopic flash. YN600L II adopts encoder digital dimming system, including coarse tuning mode and fine tuning mode.