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