Прозрачный калькулятор http://www.tinydeal.com/ultra-thin-transparent-touch-screen-solar-calculator-p-55929.html?sk=752534761j
This is an early prototype Ultra SOLN1 2000W system. I will share a DIY build video as soon as I finalize the design. The final design will be very scalable and easy to build. Other [More]