This is the very latest in cool green gadgets. Only just available to purchase now, these versatile solar bulbs made waves when they were unveiled at the beginning of the year. The bulbs are LED lamps that are charged by solar power during the day. At night you just slot the bulb into the neck of any standard plastic bottle to have six hours of continuous lighting.
The plastic bottles can be half filled with water to create a stable base and amplify the light into a bright glow. A simple and ingenious idea that should save you money on purchasing light bulbs. Of course these rely on you putting them out in the sun to charge in the morning, so will only really pay dividends if you are committed to doing that every day. But even if you aren’t an off-the-grid devotee, they are a fun green gadget to give as a gift to adults or older kids.
Now available at KidWind project costing $20 each