This items is just for off-grid Solar PV system.
For 12V PV system: 21V for Max input,300W Solar Panel.
For 24V PV system :42V for Max input,600W Solar Panel.
Brand New PWM 20A Solar Charge Controller Panel Regulator 12V 24V The Solar
lighting Controller for solar system with automatic lighting control and time
functions. TheSolar Controller is designed with a microcontroller for automatic
lighting control functions. Proven reliability Precise lighting controller PWM battery
charging Microcontroller digital accuracy Fully automatic operation 16 field
adjustable lighting control options Manual test capability Detects day and night
using the PV array Suitable for all 12V /24V lamps Suitable for Seal lead acid
battery Temperature compensation
Features:
Microcontroller digital accuracy
PWM Charge mode
State of charge (SOC)
Temperature compensation with external temperature sensor
Detects day and night using the PV array
Big terminals and big distance between terminals
Functions:
Short circuit protection
Reverse polarity protection
Reverse current protection at night
Over charging or discharging protection
Over load protection