DIY YOUR OWN SMART MODEL—-Build your own powered models, solar toys, solar lights, solar displays, charging small DC batteries. It can be used for teaching purpose. BLOCKING DIODE INSTALLED —-A blocking diode installed already in the backside to protect...
DIY YOUR OWN SMART MODEL—-Build your own powered models, solar toys, solar lights, solar displays, charging small DC batteries. It can be used for teaching purpose. BLOCKING DIODE INSTALLED —-A blocking diode installed already in the backside to protect...
