Livguard Solar LS OG1150 Solar UPS has in built 50Amps solar charge controller which extracts maximum power from upto 900wp solar panels to charge the battery in short time. Livguard Solar OG1150 UPS ...

This is called a sound wave. If your ears are close to the vibrations ... This clip will be relevant for teaching Science or Music in primary schools at Key Stage Two or Second Level (Scotland).