Nokero (short for No Kerosene) was formed in June 2010 to develop safe, affordable and environmentally-friendly technology that eliminates the need for harmful and polluting fuels used around the world. Easy-to-hang Nokero bulbs cleverly charge by day and bring hours of light each night. They’re bright enough to replace most traditional electric lights. They are water resistant, and replaceable batteries will last for approximately 1.5 years, depending on use.