We produce 24v lithium ion battery and 24v lifepo4 battery used for solar street lamp is exported to many countries around the world and has a good market reputation. Lithium ion battery or lifepo4 battery with solar controller inside the case. Complete accessories will be provided to make the installation easier. Lithium solar batteries 5 time period control and auto-dimming function to assure 365-day lighting. Bluetooth control is available, so users can check the battery status over the phone.