Have you ever come across a product that just makes sense? And by “makes sense” I mean, it leaves you pounding your palm into your forehead wondering why someone didn’t invent this a long time ago? Well the GravityLight is one such product. The second I saw it I suffered a “well duh” moment. LED lights use very little power, and while the light they produce isn’t exactly a nice calming yellow, it’s still good enough to see by. And when you don’t have anything but candles, and you’ve got no electricity, this is one hell of a solution.
As always, the problems with creating products for use in developing countries is as follows:
- Lack of skilled people to repair the product
- Lack of components to repair the product
- Lack of power
This product covers ALL of those. It’s cheap, tough, built of durable components, doesn’t need a battery, and produces its own power. The power is provided by gravity. A small rotor spins inside as it slowly drops. The bag underneath the light holds sand or rocks. The gears produce enough current to power the LED. Put it at the top of its bracket and let it fall. It will light an area for a half-hour before it reaches the bottom. When it goes out, just lift it up and start over. WTF could be simpler than that? A candle? Sure, but this thing won’t light your house on fire or get hot wax all over. It won’t burn out – LEDs get dimmer with age, but are usually good for twenty years. You won’t have to buy anything else – ever. It’s fricken brilliant.
The target cost for the GravityLight is less than five bucks. Very cool. I hope this thing makes it to market.