Plastic Copper 6 X 6 Outdoor 5 LED 78Lumens Solar Post Cap Light (set of 12) Solar panel: 2014 4th generation New & Improved For Superior Charging Material: Premium ABS Plastic Operating Time: Up to 8 hours (depending on weather, temperature, regions and sunlight intensity available) Dimensions : 6.25" (L) X 6.25" (W) X 4.25" (H) Designed to fit on 6x6 Hollow Vinyl/PVC/Plastic or Solid Wood/Composite Posts