Godox Mini Thinklite TTL TT350S Camera Flash High Speed 1/8000s GN36 for Nikon Mirrorless Digital Camera Series: Speedlite Recycling Time: Approx.0.1~2.2 seconds Power Source: Approx.210(2500mA Ni-MH batteries) Dimensions: 140*62*38mm Weight: 320g Color: Black