Would you like to halve the recycle speed of your strobies proflash battery pack powered speedlights of course you would this handy little adapter does just that attaching to both battery outlets and combining into a single input the adapter cable is compatible with other interfit adapter cables allowing you to quicken the recharge time of an attached nikon canon sony or metz flash as well as a proflash wedding and event photographers will find this gadget especially useful as it allows