XIQI Solar Power 6 LED Outdoor Road Stud Driveway Mountain Roads Aboard Ships watercrafts Pathway Dock Spike Light Lamp,Static Light Mode (RED Light) LED Dock Lights With Replaceable Battery 6 LED's per light Each light includes a 400mAh Rechargeable AAA Ni-Cd Battery Amorphous Solar Panel Dimensions 4" x 4.5" x 1" Drill Holes are 3.5" apart