Features
This flash is suitable for all SLR cameras with standard hot shoe, such as Canon, Nikon, Pentax, Olympus
Use high-performance CPU control lines to precisely control the power output and to achieve a minimum of 1/128 power flash
Support 24-105mm zoom function
Equipped with advanced light control flashing mode
The anti-pre-flash function allows the pre-flash camera to shoot pictures with light control flashing
Equipped with 3 flash mode switch and can be used as a auxiliary lamp under light control mode
Eight power precision control with a minimum of 1/128
Equipped with fast charge hole, you can use the Godox PB820/PB960 power box to meet the needs of the highest recycle time
Equipped with power-saving and overheat protection
General Specs
Brand & Model Godox TT660
Color Black
Type Camera flash
Vertical Rotation Angle  0- 90 ° 
Horizontal Rotation Angle  0 - 270 °
Zoom Manual zoom, 24/28/35/50/70/80/105mm
Recycle Time About 0.1 to 6s (powered by AA alkaline cell) 
Flash Frequency 100 to 1500 times (powered by AA alkaline cell)
Battery  4 x AA LR6 alkaline or 4 x Ni-MH rechargeable batteries
Compatibility All SLR cameras with standard hot shoe, such as Canon, Nikon, Pentax, Olympus
Color Temperature 5600k +200 k
Flash Time  1/300s-1/20000s
Flash Index 1/1 positions; 105mm focal length, 58 (m ISO 100)
Flash Mode M, S1, S2