Yongnuo SF-17C Speedlite Battery Pack

Yongnuo SF-17C Speedlite Battery Pack:

• Battery Type: 6 AA batteries
• Weight: 170g (6 oz)
• Dimensions: 69mm x 158mm x 25mm
• Operating Temperature Range: 0°C – 40°C
• Compatibility: Canon Speedlites (580EX II, 580EX, 550EX, MR-14EX, MT-24EX), Yongnuo Speedlites (excluding YN-568EX), Nikon Speedlites (SB-11, SB-20, SB-22, SB-24, SB-25, SB-26, SB-27, SB-28/28DX, SB-80DX), Sony Speedlites (HVL-F56AM)
• Special Features: Reduces flash recycle time, increases number of flashes, includes padded protective case, 1/4″ screw adaptor