【Multifunctional TTL Camera Flash】 This speedlite boasts 76Ws maximum output, GN60, uniform 5600K±200K cool daylight, 1/180s-1/20000s flash duration, 1.5s recycle time. The 20-200mm focal length adjusts automatically or manually. Powered by a 7.2V 3000mAh rechargeable battery, it offers 600 full power flashes and fully charges in 2.5h via 5V 2A USB (charger not included). Firmware updates supported via USB C. NOTE: For optimal battery longevity, please fully charge the device before first use 【New UI/TCM Switch/Flexible Head】 The HD LCD screen and new UI allow easy use. Convert between TTL and M modes with the TCM switch for precise flash metering. The powerful LED modeling lamp features 10 dimming levels for accurate flash preview. The flash head can tilt -7°-120° and turn 0°-330° for flexible flash bouncing 【Multiple Modes & 1/8000s HSS】 The speed light flash provides TTL (auto), M (manual), and RPT (stroboscopic) modes. The TTL mode supports ±3 (19 levels) exposure compensation, the M mode supports 1/256-1/1 (81 levels) output adjustment and S1/S2 optical slave, and the RPT mode enables up to 100 stroboscopic flashes at 199Hz. 1/8000s HSS, front/rear curtain sync, and FEC/FEB (flash exposure compensation/bracketing) are also available 【Built In 2.4G Wireless Q System】 With NEEWER 2.4G Q System, the flash has 4 master groups (A/B/C/D), 5 slave groups (A/B/C/D/E, D/E for QPro triggers), 32 channels (1-32), and 99 IDs (1-99), compatible with the QPRO-C Trigger (sold separately) for wireless flash control. It can work as a master/slave unit for other Q system flashes and allows wireless flash sync within 328'/100m (no obstacles) 【Compatible with Canon Cameras】 This camera external flash light accessory is compatible with Canon R8 R6 R5 R3 R M6 850D 800D/T7i 760D/T6s 750D/T6i 650D 600D 7D Mark II 7D 6D Mark II 6D 5D Mark IV/III/II 1D Mark III 1DX 550D 500D 450D 90D 80D 70D 60D 50D 1100D 77D SL3/250D T7/1500D 2000D T100/3000D 4000D. NOT compatible with Canon RP R50