YongNuo new illumination lighting YN-300 for DV Camcorder Video for Canon Pentax 1, YN-300 high-quality LED beads.Design of 300 led light beads. the brightness is surpassed again 2, Encoder digital dimming. One-button switch fine tuning mode; the dimming is more precise to meet your high requirement. 3, Auto luminance adjustment based on ambient luminance *The first LED camera lamp with built-in photometric system worldwide provides auto luminance adjustment, easy to use and more energy-efficient. 4,The wireless remote control provides remote controlled luminance adjustment and power on and off. 5, Professional LED driver IC offers light stability and a light efficiency as high as 93%.