This controller is an intelligent, multi-purpose solar charge and discharge controller. It can automatically identify 12V and 24V (or 48V), please make sure the battery has enough voltage when you install it for the first time. The solar controller adopts a fixed liquid crystal display; various control parameters can be flexibly set to fully meet your various application needs. Wide range of applications: suitable for solar green lights, solar light billboards, solar insecticidal lights, solar power generation systems, marine solar power generation systems, solar power generation systems, etc. This Solar Controller ,It can fully meet your home Photovoltaic system(including home lighting system)requirements. Package Includes:1x Solar Charge Controller Specifications:Material: MetalCurrent: 10A/20A/30AAutomatic Identification: 12V/24VWork Temperature: 0~60C