The Neewer Q4 400W 2.4G TTL Flash with Battery is an award-winning, professional-tier battery-operated outdoor strobe and studio monolight built for commercial portraiture, weddings, fashion photography, and sports tracking. Boasting an optimized rectangular form factor constructed from die-cast ADC12 aluminum alloy, this portable powerhouse generates a robust 400Ws energy output. It offers modern Through-The-Lens (TTL) automatic exposure compatibility alongside 9-stop manual energy control adjustable down to 1/256 in precise 0.1-stop increments.Engineered for field use and dynamic environments, the Q4 eliminates standard power cord hazards by relying on a removable high-capacity lithium-ion pack. The underlying flash tube manages highly precise color stability, maintaining a uniform 5600K (±200K) output across the entire power range. Advanced internal circuitry unlocks creative sync selections like First Curtain, Second Curtain, and deep 1/8000-second High-Speed Sync. It also includes an eco-minded, built-in silent cooling fan to regulate thermal temperatures during fast-paced, sequential flash intervals.The physical geometry features a convenient top handlebar grip for easy low-angle carrying, combined with a detachable stand mount containing a dedicated umbrella shaft slot. On the back, an intuitive high-resolution dot-matrix display paired with a rotary data dial enables rapid menu navigation in full sunlight. Through its integrated 2.4GHz wireless receiver, the Q4 pairs flawlessly with Neewer QPRO radio transmitters, giving creators automated remote power adjustment and group lighting control right from the camera hot shoe.

• Model No.: Q4
• Maximum Flash Power: 400 Ws
• Product Weight (with battery, no tube/reflector): 4.4 lb / 1.98 kg (1,980 g)
• Gross Weight (with battery, flash tube, & reflector): 4.94 lb / 2.24 kg (2,240 g)
• Guide Number (GN): 72 (meters, with high-performance reflector)
• Flash Modes: TTL, Manual (M), Multi (Stroboscopic)
• Power Control Range: 9 Steps (1/1 to 1/256 in 0.1 increments)
• Recycling Duration: 0.01 to 1.2 seconds
• Flash Duration Range: 1/209s to 1/10989s
• High-Speed Sync (HSS): Up to 1/8000s
• Sync Methods: HSS, First Curtain Sync, Second Curtain Sync
• Color Temperature Stability: 5600K (±200K)
• LED Modeling Lamp: 30W / 5600K / CRI 95+
• Stroboscopic Flash Rate: Up to 100 times / 199 Hz
• Wireless Trigger System: Built-in 2.4G Q System
• Wireless Reach: Up to 328 ft / 100 m
• Wireless Grouping & Channels: 5 Groups (A–E) / 32 Channels (1–32)
• Battery Configuration: 21.6V / 56Wh / 2600mAh Lithium-Ion
• Full-Power Flash Yield: Approx. 400 Flashes
• Cooling Protection: Built-in silent thermal fan
• Hardware Interface Mount: Bowens S-Type modifier mount
• Physical Dimensions: 7.3" x 8.3" x 2.2" / 18.5 x 21.2 x 5.5 cm 

• Capture sharp action sequences outdoors by deploying the 1/8000s high-speed sync function to maintain shallow depths of field under harsh, bright sunlight. 
• Maintain complete creative momentum on location without worrying about AC wall outlets, thanks to a heavy-duty battery pack that supports 400 full-power pops. 
• Gain instantaneous automatic exposures on erratic portrait sets via the smart TTL metering framework that recalculates flash brightness as distance shifts. 
• Expand your modifier collection freely by utilizing the standard Bowens mount to snap on legacy softboxes, grids, and snoots without buying adapter rings. 
• Isolate ultra-fast athletic movement cleanly by engaging the stroboscopic multi-flash pattern to track overlapping action frames across a single long exposure. 
• Fine-tune ambient accent lighting quickly by checking structural settings on the high-contrast dot-matrix LCD screen, which stays completely legible outdoors. 
• Pre-visualize complex studio shadow falls with precision using the continuous 30W modeling lamp to map out light placement before firing a shot.