Godox V860III Specs Flash Head Guide Number 196.9′ / 60 m at ISO 100 (200 mm Position) Coverage Full-Frame 20 to 200 mm Auto Zoom Head Yes Bounce Head None Swivel Head None Flash Duration 1/300 to 1/20000 Second Recycle Time Approx. 1.5 Seconds Secondary Illumination Modeling Light Exposure Control Exposure Control Canon E-TTL / E-TTL II, Manual Flash Modes Hi-Speed Sync, Second-Curtain Sync Flash Compensation None Wireless Wireless Operation None Wireless Channels 32 Wireless Groups 5 Power Internal Power 1 x Rechargeable External Power Pack Compatible No General Mount Shoe Off-Camera Terminal 2.5 mm Dimensions (W x H x D) 7.7 x 3 x 2.3″ / 195 x 75 x 59 mm Weight 18.7 oz / 530 g (with Battery) Packaging Info Package Weight 2.18 lb Box Dimensions (LxWxH) 9 x 8 x 4″