---
product_id: 741836591
title: "Morningstar Sunlight 20A Solar Charging Controller (SL-20L-12V) - Solar Panel Regulator for 12V Battery Lighting Ctrl Easy Setup with Corrosion Resistant Terminals 5 Year WTY - Designed in USA"
brand: "morningstar corporation"
price: "KD 8670.31"
currency: KWD
in_stock: true
reviews_count: 4
category: "Morningstar Corporation"
url: https://www.desertcart.com.kw/products/741836591-morningstar-sunlight-20a-solar-charging-controller-sl-20l-12v-solar
store_origin: KW
region: Kuwait
---

# 10 customizable lighting modes 20A PWM charging power Easy setup with LED & test button Morningstar Sunlight 20A Solar Charging Controller (SL-20L-12V) - Solar Panel Regulator for 12V Battery Lighting Ctrl Easy Setup with Corrosion Resistant Terminals 5 Year WTY - Designed in USA

**Brand:** morningstar corporation
**Price:** KD 8670.31
**Availability:** ✅ In Stock

## Summary

> ☀️ Power your off-grid lifestyle with smart, reliable solar control!

## Quick Answers

- **What is this?** Morningstar Sunlight 20A Solar Charging Controller (SL-20L-12V) - Solar Panel Regulator for 12V Battery Lighting Ctrl Easy Setup with Corrosion Resistant Terminals 5 Year WTY - Designed in USA by morningstar corporation
- **How much does it cost?** KD 8670.31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/741836591-morningstar-sunlight-20a-solar-charging-controller-sl-20l-12v-solar)

## Best For

- morningstar corporation enthusiasts

## Why This Product

- Trusted morningstar corporation brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable & Weatherproof:** Rugged corrosion-resistant terminals built to thrive in harsh seaside and extreme climates.
- • **Smart Lighting Control:** Integrated microcontroller offers 10 timer settings, including energy-saving pre-dawn activation.
- • **Effortless Installation:** LED indicators and test button ensure flawless setup in minutes—no guesswork required.
- • **Extended Battery Longevity:** Advanced 3-stage charging with temperature compensation maximizes battery health and runtime.
- • **Precision Solar Power Management:** 20A PWM controller optimizes 12V battery charging for peak off-grid efficiency.

## Overview

The Morningstar Sunlight 20A Solar Charging Controller (SL-20L-12V) is a robust PWM regulator designed for 12V off-grid solar systems. It features 20 amps of charging capacity, advanced lighting control with 10 customizable timer options, and easy installation aided by LED indicators and a test button. Built with corrosion-resistant terminals and temperature compensation, it ensures durable, efficient battery charging and longer battery life. Designed in the USA and backed by a 5-year warranty, it’s trusted by professionals for reliable solar energy management.

## Description

Product Description Sunlight - 20 Amps, LVD (12V) Legal Disclaimer Meeker Industries, Inc. Returns Shipping Paid by the Customer. After 30 days, please contact the manufacturer for service and policies

Review: I'm using this product with my two 100-Watt Renogy mono-crystalline solar panels. It's charging a 12V battery during the day and running lights from the battery at night. The entire system is off-grid and is working in a completely dry environment that experiences the full range of America's North East temperature range. (I.E., Approximately 0-degrees F to 100-degrees F.) It works beautifully right out of the box. I'm using the SunLight to time control 12-V LED pathway lights and re-charge a 12V flooded battery.) (I've successfully tested the SunLight's various built-in timing functions to control the load (ie LED path lights) ) I've observed perfect operation of the system, as well as automated shut-down when the battery charge level drops too low. I have no complaints and so far (~5 months) it works perfectly. I like the product.
Review: This is a great product that not only works as expected but it was also easy to install. My garden uses extensive yard and deck lighting, all of which were LED or converted to LED prior to the installation of the solar system. This device, in conjunction with a 100 Watt solar panel on the roof and an 80 AHr battery, provides about six hours of lighting after a sunny day. The only improvement would be to remove the feature that shuts it down once the battery discharges to 11.7 v as standard 12v LED lighting is capable of running efficiently on lower voltages without problem and this is really designed for lighting. This limit is hard-wired into the device but making it user-adjustable (or non-existent) would be ideal. I had to take off a star because of the limitation. UPDATE: After using this for a while, I am discovering that with only a minimal load of LED garden lights (I disconnected all but a few for testing), it shuts them off prematurely. When it does, the low voltage indicator comes on while the battery itself still has over 13.5 volts available. A little while later the lights come on again, then go off again over and over. Morningstar replaced the unit but the replacement does the same thing and now they no longer respond to support requests so steer clear!

## Features

- 20A PWM Controller: Morningstar Solar Pulse Width Modulation (PWM) 20A Solar Charging Controller provides reliable 12V battery charging for off-grid solar systems. Adjusts power from solar arrays to battery bank. Benefits of low power consumption and consistent energy harvesting efficiency
- LIGHT CONTROL: This controller features an integrated microcontroller for advanced automatic lighting control. Includes 10 customizable lighting options and accurate on-board timer. The user-adjustable rotary digital switch allows the light to be lit for 2-10 hours or operate all night long. Unique On/Off setting saves energy by turning on the light 1-2 hours before sunrise. Timer guarantees accuracy within 2 seconds
- EASY INSTALLATION: Convenient test button function and LED indicator make setup a breeze. Test button allows you to confirm correct installation by turning on the light during the daytime and LED indicates the selected lighting option. Rugged design built to withstand harsh conditions including seaside environments
- LONGER BATTERY LIFE: This sunlight controller uses a series PWM with three levels of charging, bulk, absorbent, and float. Includes temperature compensation with controller or battery using optional remote temperature sensor
- TRUSTED AND RELIABLE: Morningstar Corporation is an American company founded in 1993, a global leader in manufacturing PWM and MPPT solar charging controllers, inverters and accessories. Known for the lowest hardware failure rate in the industry, Morningstar provides reliable and innovative technology for advanced solar applications. Morningstar products include US-based technical support and are the best choice for mission critical users

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008H723E4 |
| Batteries | 1 Unknown batteries required. |
| Customer Reviews | 4.5 4.5 out of 5 stars (11) |
| Date First Available | January 28, 2014 |
| Display Type | LED |
| Is Discontinued By Manufacturer | No |
| Item Dimensions L x W x H | 16.8 x 5.6 x 3.3 cm |
| Item Weight | 254 g |
| Item model number | SL-20L-12V |
| Manufacturer | Morningstar Corporation |
| Operating Temperature | 221 Degrees Fahrenheit |
| Product Dimensions | 16.76 x 5.59 x 3.3 cm; 254.01 g |
| UPC | 733556560093 |

## Product Details

- **Brand:** Morningstar Corporation
- **Color:** multicolor (white / black)
- **Item Weight:** 0.56 Pounds
- **Material:** 金属または耐腐食性プラスチック。
- **Voltage:** 12 Volts

## Images

![Morningstar Sunlight 20A Solar Charging Controller (SL-20L-12V) - Solar Panel Regulator for 12V Battery Lighting Ctrl Easy Setup with Corrosion Resistant Terminals 5 Year WTY - Designed in USA - Image 1](https://m.media-amazon.com/images/I/717cSQVsbpL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by P***K on December 23, 2014*

I'm using this product with my two 100-Watt Renogy mono-crystalline solar panels. It's charging a 12V battery during the day and running lights from the battery at night. The entire system is off-grid and is working in a completely dry environment that experiences the full range of America's North East temperature range. (I.E., Approximately 0-degrees F to 100-degrees F.) It works beautifully right out of the box. I'm using the SunLight to time control 12-V LED pathway lights and re-charge a 12V flooded battery.) (I've successfully tested the SunLight's various built-in timing functions to control the load (ie LED path lights) ) I've observed perfect operation of the system, as well as automated shut-down when the battery charge level drops too low. I have no complaints and so far (~5 months) it works perfectly. I like the product.

### ⭐⭐⭐⭐ Review
*by D***N on May 15, 2013*

This is a great product that not only works as expected but it was also easy to install. My garden uses extensive yard and deck lighting, all of which were LED or converted to LED prior to the installation of the solar system. This device, in conjunction with a 100 Watt solar panel on the roof and an 80 AHr battery, provides about six hours of lighting after a sunny day. The only improvement would be to remove the feature that shuts it down once the battery discharges to 11.7 v as standard 12v LED lighting is capable of running efficiently on lower voltages without problem and this is really designed for lighting. This limit is hard-wired into the device but making it user-adjustable (or non-existent) would be ideal. I had to take off a star because of the limitation. UPDATE: After using this for a while, I am discovering that with only a minimal load of LED garden lights (I disconnected all but a few for testing), it shuts them off prematurely. When it does, the low voltage indicator comes on while the battery itself still has over 13.5 volts available. A little while later the lights come on again, then go off again over and over. Morningstar replaced the unit but the replacement does the same thing and now they no longer respond to support requests so steer clear!

### ⭐⭐⭐⭐⭐ Review
*by S***E on September 14, 2021*

I like everything

## Frequently Bought Together

- Morningstar Sunlight 20A Solar Charge Controller (SL-20L-12V) - Solar Panel Regulator for 12 Volt Batteries, Lighting Ctrl, Easy Setup, Corrosion Resistant Terminals, 5 Year WTY - Designed in The USA
- Morningstar SunSaver 10A PWM Solar Charge Controller (SS-10L-12V) - Solar Panel Regulator for 12V batteries, Four Stage Battery Charging, LVD, HazLoc Rated, Low Noise, 5 Year WTY - Designed in the USA
- Renogy Solar Panel 100 Watt 12 Volt, High-Efficiency Monocrystalline PV Module Power Charger for RV Marine Rooftop Farm Battery and Other Off-Grid Applications, RNG-100D-SS, Single 100W

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-03-24*