NEEWER Q4PRO 400Ws 2.4G TTL Outdoor Studio Flash Strobe with App Control

Compact & Powerful 400Ws Output NEEWER Q4PRO strobe light features a rounded square body and foldable easy carry handle. It delivers 400Ws strong output for outdoor portraits, commercial shoots, and multi light setups. Supports smartphone app control, firmware updates, and dual TFT color screens for intuitive group management

Constant Color Temp & Precise Flash Control Q4PRO offers 10 flash power output levels (1/512 to 1/1), adjustable in 0.1 stop increments. The 6000K color temperature and 30W modeling lamp with 10%-100% brightness control help preview lighting, assist focusing, and confirm setups

TTL/Manual/Multi Flash Modes Compatible with Canon E-TTL II Nikon i-TTL Sony TTL systems, Q4PRO as photography lighting accessories offers TTL, Manual, and Multi (Stroboscopic) modes. Supports Flash Exposure Compensation, 1/8000s High Speed Sync, first/second curtain sync, S1/S2 modes, C.Fn custom settings, high speed burst mode, and 0.01s-30s delay trigger. Multi mode supports up to 100 flashes (100 Hz)

Expanded 2.4G Wireless Q System When paired with NEEWER QZ series triggers (sold separately), Q4PRO wirelessly controls 5 groups, 32 channels, and 99 IDs up to 328ft/100m, and works as a master or slave unit for Q system flashes. RX COMPAT mode compatible with Godox 2.4G X transmitters. Compatible with the Sekonic L-858D light meter (RT-GX module). Note: Q and X systems cannot be used at the same time; update to the latest firmware for compatibility

2800mAh Battery & Freeze Mode For fast moving objects, the strobe photo light features a short flash duration of 1/28570s in Freeze Mode (1/15625s in Flash Mode), ideal for motion, splashes, and high speed action. Includes a 21.6V 2800mAh lithium battery for 325 full power flashes, with a recycling time of 0.01-1s. Note: Fully charge before first use.