Specifications: Name: Solar ControllerVoltage: DC 12V / 24V automatic identificationApplicable battery type: lead-acid battery 12/24VSelf-consumption: Charging method: PWMOvercharge protection: 14.4V / 28.8VOvercharge and floating charge: 13.7V / 27.4VCharging recovery voltage: 12.6V/25.2VOver discharge protection: 10.7V / 21.4VOver discharge recovery: 12.6V/25.2VDual USB output: 5V/2.1A (charging mobile phones, for iPads, etc.)Working temperature: -35-60Product size: 122*100*33mm/4.8*3.94*1.3" Product weight: 200gNotes:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Please allow 1-3mm measuring deviation due to manual measurement. Thank you for your understanding!Packing List:1 X Solar Panel Controller1 X User Manual Large screen LCD display: Charge and discharge current display, cumulative power generation and discharge power query, light control delay control; adjustable charge and discharge parameters, with power-off memory and other functions Dual USB output: Maximum current 5V 2.1A. Equipped with 6 kinds of protection, the system control parameters are adjustable, easy to set up and operate. Built-in short-circuit protection, open-circuit protection, reverse connection protection, overload protection, reverse current protection, over-temperature protection; if the fault is removed, the controller will automatically recover Clear indicator light: Various states are simple and intuitive, when the solar panel is charging, the arrow between the panel icon and the battery icon will flash quickly, when the battery is fully charged, it will flash slowly and will stop charging. The function of the solar charge controller is to protect the voltage from overcharge and discharge. Can be used for DC lamp and mobile phone charging Controller size: 122*100*33mm; Rated voltage: 12V/24V; Rated current: 30A; Maximum voltage: up to 23V for 12V batteries, up to 46V for 24V batteries; maximum voltage input power: 390W DC interface: With a 5.5*2.1mm DC interface, it can be directly connected to a portable folding solar panel, and the DC interface can directly output 12V load, which is easier to install Large screen LCD display: Charge and discharge current display, cumulative power generation and discharge power query, light control delay control; adjustable charge and discharge parameters, with power-off memory and other functions Dual USB output: Maximum current 5V 2.1A. Equipped with 6 kinds of protection, the system control parameters are adjustable, easy to set up and operate. Built-in short-circuit protection, open-circuit protection, reverse connection protection, overload protection, reverse current protection, over-temperature protection; if the fault is removed, the controller will automatically recover Clear indicator light: Various states are simple and intuitive, when the solar panel is charging, the arrow between the panel icon and the battery icon will flash quickly, when the battery is fully charged, it will flash slowly and will stop charging. The function of the solar charge controller is to protect the voltage from overcharge and discharge. Can be used for DC lamp and mobile phone charging Controller size: 122*100*33mm; Rated voltage: 12V/24V; Rated current: 30A; Maximum voltage: up to 23V for 12V batteries, up to 46V for 24V batteries; maximum voltage input power: 390W DC interface: With a 5.5*2.1mm DC interface, it can be directly connected to a portable folding solar panel, and the DC interface can directly output 12V load, which is easier to install