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