Features: This MPPT SolarController is a complete charge controller for single ormulticell Lithiunion, LiFePO4 or Lithium Titanate batteries, with an adjustable output voltageof 1.2-17V. With its Photovoltaic Cell MPPT Function, this battery charger module can be used as a voltagesource when the battery is absent and features automatic conditioning of deeply discharged batteries. For solar battery charging, car battery charging, electric bicyclecharging and standalone battery chargers, this product is perfect for DIY enthusiasts and professionals alike. This charger can also be used for portable industrial and medicalequipment, UPSsystem, handheldequipment, and battery-backup system. Made from durable ABS material, this product is a reliable and convenient solution for all your battery charging needs. Specifications: Item:Solar Panel MPPT Controller Model：SD30CRMA Controller:MPPT Types: 9V 12V 18V Optional Package Includes: 1PC Solar Panel MPPT Controller note: Please allow 1-2mm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.