Morningstar Sunlight 12VDC PWM Charge Controller – SL-20L-12V 20A
MPN Number:
SL-20L-12V 20A
Advanced Morningstar Sunlight SL-20L-12V Solar Charge Controller
The Morningstar Corporation SL-20L-12V 20A solar charge controller is an innovative device designed to optimize your solar lighting system. This controller leverages a microcontroller for enhanced digital accuracy, providing fully automatic operation. With optimized PWM battery charging, it ensures prolonged battery life, making it a crucial component for efficient solar power management.
Product Features
Efficient PWM Battery Charging
Featuring optimized PWM charging, this controller enhances battery life by reducing the charging energy loss, offering a reliable solar power experience.
Robust Safety Features
Emphasizing safety, the system includes polarity and brownout protection. The controller safeguards against exceeding its voltage and current ratings, with integrated safety for both 12V and 24V systems.
Intuitive Lighting Control Options
This controller offers ten distinct lighting control modes tailored to diverse user needs, ranging from permanent off to dusk-to-dawn operational settings, making it versatile for varied lighting requirements.
Comprehensive User Feedback
Equipped with LED indicators, this device offers user-friendly feedback for system status, ensuring users are well informed on how their system is operating at any given time.
Easy Installation and Maintenance
Installing the controller is straightforward, with strategic design preventing excessive heating and promoting natural airflow. Annual maintenance checks optimize its performance.
How It Works
This solar charge controller operates efficiently by regulating energy from a PV array to charge batteries and power lighting loads. It integrates several components for seamless operation, designed for both technical and non-technical users.
Microcontroller-Driven Operation
A core component, the microcontroller, ensures precise digital monitoring and control, enhancing the controller’s functionality and reliability.
PWM Charging System
The Pulse Width Modulation (PWM) system regulates the charging process, ensuring optimal battery health and capacity retention over time.
Rotary Lighting Control Mechanism
An intuitive rotary switch allows users to select from various lighting options, providing adaptable lighting schedules suitable for different environments.
Specifications
| System Voltage | 12 V |
| Maximum Voltage | 30 V |
| Rated Solar Input | 20 A |
| PV Short Circuit Rating | 25 A |
| Rated Load | 20 A |
| Regulation Voltage – Sealed PWM | 14.1 V |
| Regulation Voltage – Flooded PWM | 14.4 V |
| LVD (Low Voltage Disconnect) | 11.7 V |
| LVD Reconnect | 12.8 V |
| Temperature Compensation | -27 mV/C |
