(4 Pack) Green Commercial Grade Aluminum Solar Road Stud Path Deck Dock Light with Recessed Anchor Provides up to 18 hours of light and has a visual distance of 800 yards Maximum load/Compression capacity: 30 tons Rechargeable Ni-MH (1200mAh) battery included 100% Solar Powered no external wiring necessary Dimensions (not including anchor) 5.19" x 4.8" x .9" (L x W x H); Anchor Dimensions 1.22" x 2.08" (W x H)