Godox TT520ii Flash has a fast recycle time of approx 0.1-5 seconds; 1/300s-1/20000s flash speed, clear and vivid images. 8 variable flash output from 1/128 to full, 3 flash modes: M, S1 and S2 for improved versatility and usability, meeting your different photography flashlight demand. With a pull out reflector/diffuser, Color Filter and mini stand, convenient for your use; low power consumption and overheating protection. Added with sync socket and terminals forexternal power pack. Suitable for DSLR Camera with standard hot shoe, nice replacement for Nikon, Canon, Pentax, Olympus, and so on. Comes with trigger, no need to fix the flash on the camera head any more, more flexible to use, shooting wonderful pictures with stereo feeling. Specifications：Color: Black  Material: Plastic---Flash Guide Number: 33 ( ISO@100 )