Can I use a 6 light contact staff if I only buy 2 or 4 lights?

The flowlight staffs can be used with only two or four flowlights as the flowcaps at the end of the staffs are able to have the flowlight clipped in to the flow cap to hold them in place and also to the connetor in the middle works the same. Also the flowlight can be attched together end to tail which means you can use from 2 lights to 6 light with ease.