Solar Billboard Street Light, Changeable Poster Frame, IP65 Aviation Aluminum Housing Experience superior illumination with our intelligent solar street light. Featuring a seamless integrated design, this unit combines a high-performance solar panel, lithium iron phosphate battery, and MPPT charge controller to deliver exceptional energy efficiency of up to 185 lumens per watt. Patented integrated telescopic structure, easy install & transport. Modular LED bat-wing light