Neewer Photography 400W 110V Digital Studio Flash/Strobe Modeling Light 0.5-1.5s Recycle Time Great for Amateurs or Professional Photographers (CD400) CD series professional studio flash is designed from the point of view of practical and durable on the basis of C series studio flash, taking into account the cost performance fully and controlled by the microcomputer chip and digital power display. Add red-eye reduction function, at the same time, it has the following characteristics: output power stepless dimming, modeling three control modes, recharging fast. It has ultra-low-voltage 4V trigger. There are a variety of triggers to choose, such as sound and light signal, mute electrical leakage, fault self-test, sound and light alarm. It has the in-built temperature protection circuit and in-built automatic cooling system. CD Series light can provide the high quality and power flash source for real shed base, large studio wedding photography, advertising photography, film photography, digital photography and photographic teaching and other fields