Hikvision, 4MP 25X Pro Solar-powered Security PTZ Camera Kit, 4 MP 25× Network IR Speed Dome, 80W Photovoltaic Panel, 360WH Rechargeable Lithium Battery (Modular battery 4 x 90WH included.) Support battery management, battery display, battery protection against high and low temperatures, charge and discharge protection, low battery sleep protection and remote wake-up