Nokero has proudly introduced the world’s first solar lightbulb designed specifically for use in developing nations where continual electricity is unreliable. The Nokero Rainproof Solar N100 light bulb is encased in a rainproof impact resistant enclosure, which makes it more durable. It comes with built-in solar panels that provide up to 4-hour of light when fully charged. The N100 uses five LEDs and a nickel metal hydride battery that will last for two years. The Nokero N100 is available to buy in bulk from as little as $6 or you can purchase them individually for $15 each.