1. Knob-style dimming, knob-style focusing 2. LCD display window, convenient operation 3. 8pcs barn door, 360 degrees rotation; 4. Rail-mounted adjustment; 5. High color rendering index, high luminous efficacy; 6. Excellent white light output, uniform facular, no halo; 7. Autonomous micro-light control technology, 0-100% dimming, and four kinds of dimming curves such as: S-Gamma, Linear, L-G amma, B-Gamma, could be customized. http://www.mhgled.com