S1W Ultra Thin Solar Light - GreenProven Hurricane Tough!Specifications: Body Material: High Impact Polycarbonate; Power Supply: U.S.A made High Efficient Solar Panel; Battery: Lithium Ion 3.7v/340mah; LEDs: 6 F3 LEDs; Color: Green; Visual Distance: 500M; Working Temperature: -20c (-4F); Life Expectancy: 5 Years; Waterproof: IP68 Totally Submersible; Size: 4.5" x 3.5" x .4"; Warranty: 2 years; - cis2:mm5mnJlm -Quick Guide (pdf)