I purchased three sets of these lights (so 12), based primarily on the good reviews online.  We installed these on our deck, and around our gazebo.  The first day, about half were shining away, the other half completely dark.  We assumed they just needed some more time before they would work.  They have been installed for about 2 weeks now, and now not a SINGLE ONE is emitting light.  Not one.  They are in different areas of our yard, and should have sufficient light to be charged. I would not recommend this product.  On a happy note, once notified, Wayfair immediately refunded our charge.  Very great customer service