Md-flt15300s Material: Aluminum Solar Panel: 5v 20w Solar Battery Charging: 4-6 Hours Working Time (Fully Charged): ≥12 Hours Continuous Rainy Days:3-5 Days Battery: 3.2v 20ah Lifepo4 Battery Body Size : 231*291*53mm Solar Panel Size:450*350*15mm Optical/time/remote Control