You have enough to get started with each purchase of panels, but you likely will want an extra pack or more of these to create a balanced power grid in your setup. These are inconsistently manufactured. Some are tight fitting, others loose and easily fall out. You also will need some more of you opt to use the integrated mounting strips that fail to stick to most things, and fall off when it gets moderately warm. Panels will fall, survive in most cases, but linkers might snap…there is a reason they only include adhesive on the panels, and no longer sell it individually. It gives everyone something to work with, but 3M command strips will be the better option; just time consuming to cut them down.
