Yes, if all you want is ten identical screw terminal 5.5mm (2.1mm center pin) barrel jacks. However there are better deals on paired jacks and plugs, and you should also get some 2.5mm center pin ones as there's nothing more frustrating than finding the plug you've bought doesn't fit the socket, or the socket you've bought doesn't make reliable contact with the plug. Try offering up the shank of a 3/32" drill bit to the plug on your lights - if it goes in its 2.5mm center pin, if not, 2.1mm.