The solar cells are attached to heavy-duty plastic backings that are designed to endure more abuse than your typical rigid solar panel. You can typically generate the same amount of electricity as foldable solar panels with fewer rigid solar panels. Whereas I’m comfortable throwing foldable solar panels into the bed of my truck and even stacking other items on top of them, I’m far more careful with my EcoFlow panels. Ultra-lightweight Bluetti 200 Watt Solar Panels $379 at Amazon Credit: Tony Carrick ProsConsBluetti’s 200-watt solar panels are among the lightest I’ve tried. Of the monocrystalline foldable solar panels I’ve tested, Goal Zero’s are some of the most efficient.