The Stingray Solar Powered Light Emitting Diode Torch. Over the years I have become accustomed to having more than keys on my keychain. The main addition is my USB memory stick that has grown smaller in size but greater in capacity. Here is another addition that would fit nicely on my chain. The Stingray is a mini-flashlight that has two [...]

Solar Powered Torches have been around for a while now and the concept may sound strange at first. We generally use a torch when we need that bit of extra light but that is when photovoltaic solar cells do no perform at their best. The simple answer here is to utilize batteries to store the energy for use later. Improve [...]