This photovoltaic power controller has a built-in industrial main control chip that can automatically adapt to the input voltage of 12 volt or 24 volt. Large LCD display with charging and discharging current display, cumulative power generations and discharge power query, temperature display and light control delay time display, and etc.. Fully complete 3-stage charge management, three load working modes design, easy to satisfied with your operating demands.

Features:
The build-in industrial main control chip can automatically adapt to the input voltage of 12 volt or 24 volt.
Large LCD display with charging and discharging current display, cumulative power generations and discharge power query, temperature display and light control delay time display, and etc..
The charge and discharge parameters are adjustable, with power-off memory and other functions.
The dual USB output, with a maximum current of 2.5A, supports charging mobilephones with the iOS system.
Equipped with PWM charging mode, fully complete 3-stage charge management, charges a while, stops a while, small current charges when nearly full.
Build-in short-circuit protections, open-circuit protections, reverse protections, over current protections, all are self-recovery type, no damage to the controller.
Anti-backflow circuit design with low heat production.
Discharge recovery voltage function: after battery discharge protection, the battery voltage rises to the recovery voltage, automatically opening the output.
Discharge cut-off voltage: when the battery is discharged to the voltage, the load is turned off to protect the battery and prevents the battery from being damaged by over-discharge.
Three load working modes design, easy to satisfied with your daily demands:
【24H】 load normally open mode (except battery under voltage)
【1-15H】the load is turned off when under light control and 1-15hours timer (automatically turn on the light at night for 1-15 hours and then turn off)
【OH】pure light control mode (turn off in the day; turn on at night)

Specifications:

Name: Solar Controller 
Batt voltage: 12 V/24 V automatic identification
Charge current: 10A, 20A, 30A (optional)
Discharge current: 10A, 20A, 30A (according to your selection)
Max solar input: 12.0V battery, the highest 23V; 24V battery when the highest 46V
Equalization: 14.4V(12volt input); 28.8V(24volt input)

Float charge: 13.7V(12volt input); 57.6V(24volt input) (defaul,adjustable) 

Discharge stop: 10.7V(12volt input); 21.4V(24volt input) (defaul,adjustable) 
Discharge reconnect: 12.6V(12volt input); 25.2V(24volt input) (defaul,adjustable)
Charge reconnect: 13V(12volt input); 26V(24volt input)
Voltage of open light: Solar panel 8V(12volt input); 16V (24volt input) (Light lights delay)
Voltage of close light: Solar panel 8V(12volt input); 16V (24volt input)(Light off delay)
USB output: 2 way USB output, 5V/2.5A(MAX)
Self-consume: <10mA
Operating temperature: -35 to +60℃
Item size: 125 * 112 * 34mm / 4.92 * 4.41 * 1.34in
Package size: 130 * 105 * 38mm / 5.12 * 4.13 * 1.50in
Package weight: 200g / 7.05ounce

Packing List:
1 * Solar Controller

Monitor your solar system's performance with our LCD display, showing battery voltage, solar panel load, charge/discharge current, and more. Set charging parameters for up to 30A, with options for high-voltage disconnection, low-voltage reconnection, and power monitoring.

Connecting the solar panel, battery, and consumer to the charge regulator: 1) connect the battery's + and - terminals to the regulator. 2) attach the photovoltaic module to the regulator's + and - terminals. 3) connect your device (consumer) to the regulator's + and - terminals. Reverse this order when disassembling. Improper connections can damage the controller.

Features a solar charge controller with dual USB outputs and adjustable current: 10A, 20A, or 30A (optional). Includes LCD display for easy monitoring.

Solar Charge Controller with Dual USB Output for 12V/24V Systems, featuring 10A/20A/30A charging and an LCD display.

Solar Charge Controller with dual USB outputs for photovoltaic power management, compatible with 12V or 24V systems, and featuring an LCD display.

Solar charge controller with LCD display, supports 12V or 24V input, and features auto control and 10A-30A output. (Note: The 'CV PV OFF' part is likely an error and I removed it to make the sentence more readable)