Large ring-shape design. Combined the 50cm diameter ring shaped light and the subdued light board with light blue filter; it makes eyes more attractive by magnifying. Multi-point source. Composed of 154 beads with colour temperature 3200K and 154 beads with colour temperature 5500K, it achieves high color-rendering LED light source but low energy , high intensity in the centre illumination area, better balance natural light and no shadow. Wireless Control System. Equipped with special remote controller, much convenient to real-time adjust color temperature and brightness according to different lightings fast and accurately. Two power supply methods. 1) Supports Sony NP-F series lithium battery (Yongnuo NP-F750 suggested), 2) Supplied from an external DC power source. Based on the professionally YONGNUO-designed LED constant-current driving technique, it supplies constant and visual brightness output to get an better capturing at any angle. Equipped with sturdy and special handle and a portable protecting bag for convenient take-out.