Nokero W100 Solar Work Light The W100 is the worlds brightest fully integrated solar light delivering 300 lumens of super-bright light wherever you need it. Built tough out of stainless steel and ABS plastic - designed for years of use in the toughest conditions. You can depend on Nokero - Nokero products are designed and tested in Colorado. Trust Nokero to provide light when you need it. Waterproof and it floats - Perfect for the great outdoors, boating and marine activities. Great for emergencies or general area lighting. Three brightness settings and up to 40 hour of light on a day's charge. Fully integrated design - no wires or cables to lose or break. Automatically turns on and off with the sun for remote area or security lighting (garage, shed, cabin, etc.) Emergency lighting  holds a charge up to a year Boating/Marine  general or emergency lighting for your boat without draining your boat battery. Camping  Light up a base camp Off grid buildings  Attach to the side of a building for area lighting Security lighting  automatically turns on and off with the sun Brightness (lumens): 300 (high), 150 (medium), 50 (low) Run time (hours): 10 (high), 20 (medium), 40 (low) Charge time: 6-8 hours in direct sun light (angle toward sun for best charging) Exposure: Completely weatherproof and fully submersible Materials: ABS plastic flotation bumpers; stainless steel housing and mounting points Solar panel: 6.5Watt Sun Power monocrystaline - the world&#039;s most efficient panel Auto On/Off: W100 will turn on/off based on sun exposure if unit is &#034;on&#034; Battery type: LiFePO4, 3.2 Volts, 10 Amp-Hours (non-replaceable) Battery life: 2,000 cycles (thats up to five years of daily use) Battery indicator: 5 segment LED indicator Dimensions: 34cm x 34cm x 8cm (13.25&#034; x 13.25&#034; x 3.0&#034;) Weight: 2kg (4.5lbs)