I put these ultra-durable solar spotlights through wind, rain, and even frost — here's what happened
If you turn the spotlight over, you'll notice an on/off switch on the reverse. However, if you are operating the switch in the daylight you won't be able to tell whether it is on or off. Simply place ...
Interesting Engineering on MSN1d
US firm unveils ‘world’s largest’ transparent power-generating solar windows
Sustainable power-generating glass windows. Devices called organic photovoltaics employ organic semiconductors to harness ...