... roads, communities, etc. It contains a solar panel, a storage battery, a charge controller, an electronic energy-saving lamp, etc. ... requirements. Features:1) Height: 2.8m - 10m 2) Solar panel: 10W - 120W 3) Maintenance-free lead-acid battery: ... Charge controller: 12V 5A - 12V 20A 6) Wireless, safe, easy to install, maintenance free, environmental friendly a7) No need to pay electrical bill Solar ...