it is an external power source for the Nikon Speedlight. This Battery Pack can hold 8 AA-type batteries, ensuring a stable power supply for the speedlite, greatly increasing the number of flashes, and reducing recycling time.
-Protective Case: Protective soft case can be worn on belt or put in a bag; light and easy to carry. The one-way connector plug is designed to avoid mis-connections which can lead to flash unit damage.
1/4'' Thread Screw: Standard thread for tripod mount.
-Performance: The Pack reduces recycling time to less than half of a normal cycle and can give up to double the amount of flashes as the original ( a ). It is suitable for continuous flash use ( b ).
-Convenience: The Pack uses 8 AA batteries (same batteries as flash) and with different connecting plugs, supports most Nikon flashes to greatly increase flash capacity. It’s ideal for the professional.
Product dimensions: 69mm(w)x158mm(h)x25mm(d)
Net weight: 170g
Operating Temperature range: 0oC-40oC
Suits: Nikon SB900
1 x External Flash Battery Pack (batteries not included),
1 x padded protective case,
1 x 1/4 inch screw adaptor & English and Chinese instructions.
a, Depending on state of battery charge;
b, Maximum of 15 consecutive shots without break or risk of overheating