iGlow 12 Pcs Outdoor Bright White LED Solar Ice Rock Crystal Glass Landscape Path Lights Post Cap Deck Garden Decoration 1 Ultra Bright White LED, last up to 100,000 hours Pre-installed Rechargeable AAA Ni-Cd, last up to 2 years before replacing Automatic sensor activates at dusk with New and IMPROVED solar panel for better charging performance Weatherproof  designed to protect the lights from elements Dimensions: 2.75 (L) x 2.75" (W) x 2 (H). Easy to install, no wiring required