Features:【MPPT solar charge controller】 The autofocus technology MPPT tracks the charging process with high charging efficiency, detection during charging and two-way focus tracking.【Industrial Grade Master Chip】 16 AD Sampling accuracy, temperature charging current, unloading current Accurate real-time display, power generation at a glance.【Multiple electrical protection】 Overcurrent and short circuit protection, inverse connection, interrupt protection, discharge protection and overload protection【Good heat dissipation】 Dual MOSFET backflow protection, low heat production【Easy to use】 comes with an ad that can uniquely specify the status and data, it can conveniently switched modes and parameter configuration, suitable for house, industry, commercial etc Specifications:Material: RoHS + ABSDimensions: approx. 17.5 x 10 x 4.7 cmSystem voltage: 12 / 24V adaptiveNayload current: 100ARated discharge current: 30ASolar photovoltaic voltage: 12V battery with 18V solar panel, 24V battery with 36 solar panelFull voltage value: lithium battery (12.2V) | B02 Colloidal Battery (14.2V) | B03 Open cell (14.6 V)The following voltages are only 12V systems. If it is a 24-V system, it is twice as high as the value of 12V.Overload Floating Charge: 13.7 V (default setting, adjustable)During discharge protection: 10.7 V (default setting, adjustable)About Discharge Recover: 12.6 V (preset, adjustable)Standby current: