NEEWER Q4 400Ws 2.4G TTL Outdoor Studio Flash (New Look), 1/8000s HSS/2800mAh Battery/30W Setting Lamp/400 Full Power, Flash, Photography, Bowens Assembly, Monolight with Cleaning Cloth

IF design award-winning 400 W flash unit for outdoor use: Q4 400 Ws is an award-winning battery-operated flash light. It features an impressive GN72 with high performance reflector (not included), a 30W/5600K/CRI95+ LED setting lamp and a convenient top handle. With a compact rectangular shape of 7.3 x 8.3 x 2.2 inches/185 x 212 x 55 mm and a weight of only 2.2 kg, Q4 is ideal for outdoor photography and studio shooting

TTL/Manual/Multi Flash Modes: Compatible with the automatic flash system Canon E-TTL II, Nikon i-TTL and Sony TTL. Q4 has 3 flash modes: TTL, Manual and Multi (Strobe). It supports flash exposure compensation; 1/8000s HSS (high speed synchronization); manual power adjustment, adjustment light, first/second curtain sync, up to 100x strobe frequency (199Hz), S1/S2 mode, custom C.Fn settings and firmware update

Lithium battery with 21.6 V/2800 mAh: The high battery capacity of 2800 mAh provides 400 flashes with full power, a recharge time of 0.01 to 1.2 seconds and a flash time of 1/209 to 1/10989 seconds for detecting continuous movement. The battery compartment allows for easy battery change and the DC charging port can fully charge the flash in about 3.5 hours via the included adapter

Built-in 2.4G Q system and masking function: works with QPRO triggers (not included), which have 5 groups (A/B/C/D/E) and 32 channels for easy connection. The QPRO transmitters (not included), which fully support TTL, can be controlled from up to 100 m away. The masking function helps isolate the subject from the background for easier image editing.