Set of 4 Bronze Finish 4" x 4" Outdoor Deck & Post Light with White LED 100% Solar powered no external wiring necessary Product Dimensions - 5.75" x 5.75" x 4.5", Base Dimensions: 4" x 4" Post Size Fitting; for Wood or Composite Posts the post size must be smaller than 3-13/16" square; can also be used on a Hollow Vinyl/Plastic Posts but the inside opening must be larger than 3-15/16" Rechargeable Batter included (AA Ni-Cd) Brilliant White LED, with over 100,00 burn hours Painted copper colored finish