--- product_id: 18350525 title: "- Morningstar Sunguard 4.5A PWM Solar Charge Controller (SG-4) - Intelligent Solar Panel Regulator. Supports 12V Batteries, Outdoor Rated, Highly Reliable and Easy to Install - Designed in the USA" brand: "morningstar corporation" price: "€ 87.72" currency: EUR in_stock: true reviews_count: 8 category: "Morningstar Corporation" url: https://www.desertcart.gr/products/18350525-morningstar-sunguard-4-5a-pwm-solar-charge-controller-sg-4 store_origin: GR region: Greece --- # 4.5A PWM charge current Waterproof outdoor-rated wiring 25% overcurrent rugged design - Morningstar Sunguard 4.5A PWM Solar Charge Controller (SG-4) - Intelligent Solar Panel Regulator. Supports 12V Batteries, Outdoor Rated, Highly Reliable and Easy to Install - Designed in the USA **Brand:** morningstar corporation **Price:** € 87.72 **Availability:** ✅ In Stock ## Summary > 🔋 Power your independence with rugged, reliable solar control! ## Quick Answers - **What is this?** - Morningstar Sunguard 4.5A PWM Solar Charge Controller (SG-4) - Intelligent Solar Panel Regulator. Supports 12V Batteries, Outdoor Rated, Highly Reliable and Easy to Install - Designed in the USA by morningstar corporation - **How much does it cost?** € 87.72 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/18350525-morningstar-sunguard-4-5a-pwm-solar-charge-controller-sg-4) ## 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 - • **Plug & Play Simplicity:** Easy installation with LED indicators and a test button to confirm perfect setup instantly. - • **Built to Brave the Elements:** Epoxy-encapsulated solid-state design with waterproof connectors for ultimate outdoor durability. - • **Precision 4.5A PWM Charging:** Maximize your small solar setup with efficient, low-consumption power regulation. - • **Trusted American Innovation:** Backed by Morningstar’s industry-leading reliability and 5-year warranty for peace of mind. - • **Extend Your Battery’s Lifespan:** Smart temperature compensation and series PWM charging optimize battery health and performance. ## Overview The Morningstar Sunguard 4.5A PWM Solar Charge Controller (SG-4) is a compact, highly reliable solar regulator designed for 12V battery systems. Featuring a durable epoxy-encapsulated solid-state design and waterproof outdoor wiring, it delivers efficient PWM charging with temperature compensation to extend battery life. Easy to install with LED indicators and a test button, it’s engineered in the USA and backed by a 5-year warranty, making it a top choice for small-scale solar setups demanding dependable performance. ## Description SunGuard-4 amp (12V) ## Features - 4.5A PWM CONTROLLER: Morningstar Sunguard Pulse Width Modulation (PWM) 4.5A solar charge controller delivers reliable charging for smaller solar systems. It regulates power from the solar array that it delivers to batteries. Benefit from its low self-consumption and high energy harvest. - RUGGED DESIGN: Made with 100% solid-state components and epoxy encapsulation for exceptional durability. It is rated for 25% over currents without the need for derating. The controller is easy to install, featuring outdoor-rated, waterproof connecting wires that ensure a secure connection to the solar module and battery. - EASY INSTALLATION: Easy to set-up, with a convenient test-button feature and LED indicator. The test button allows you to verify correct installation by turning the lights on during the day, while the LED indicates selected lighting option. Its rugged design is made to withstand harsh conditions including seaside environments. - LONGER BATTERY LIFE: This controller uses series design PWM charging instead of shunt, offering more efficient battery management. It includes temperature compensation for optimized charging and low self-consumption, which extends battery lifespan and enhances overall performance. - TRUSTED RELIABILITY: Morningstar Corporation is a US company established in 1993 and is a global leader in manufacturing PWM and MPPT solar charge controllers, inverters, and accessories. Renowned for the industry's lowest hardware failure rate, Morningstar provides dependable, innovative technology for advanced solar applications. Morningstar products include U.S. based Tech Support and are the top choice for mission-critical users. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00IYO7WR8 | | Best Sellers Rank | #257,283 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #215 in Renewable Energy Controllers | | Brand | Morningstar Corporation | | Brand Name | Morningstar Corporation | | Color | WHITE/BLUE | | Customer Reviews | 4.0 out of 5 stars 150 Reviews | | Display Type | LED | | Included Components | CONTROLLER | | Item Weight | 5 Ounces | | Manufacturer | Morningstar Corporation | | Material | Epoxy | | Material Type | Epoxy | | Model | SG-4 | | Part Number | SG-4 | | UPC | 782290181163 | | Unit Count | 1.0 Count | | Voltage | 12 Volts | | Warranty Description | 5 years | ## Product Details - **Color:** WHITE/BLUE - **Brand:** Morningstar Corporation - **Voltage:** 12 Volts - **Material:** Epoxy - **Item Weight:** 5 Ounces ## Images ![- Morningstar Sunguard 4.5A PWM Solar Charge Controller (SG-4) - Intelligent Solar Panel Regulator. Supports 12V Batteries, Outdoor Rated, Highly Reliable and Easy to Install - Designed in the USA - Image 1](https://m.media-amazon.com/images/I/71Nddgx+sdL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by C***E on December 6, 2012* ### ⭐⭐⭐⭐⭐ Review *by R***E on April 2, 2025* ### ⭐ Review *by A***R on August 25, 2024* ## Frequently Bought Together - Morningstar Sunguard 4.5A PWM Solar Charge Controller (SG-4) - Intelligent Solar Panel Regulator. Supports 12V Batteries, Outdoor Rated, Highly Reliable and Easy to Install - Designed in The USA - Renogy 50 Watt 12 Volt Monocrystalline Solar Panel (Compact Design) - Morningstar SunSaver 10A PWM Solar Charge Controller 12V Battery | Solar Controller | Solar Electric Fence Charger | Charge Controller | Solar Panel Controller | Lowest Fail Rate --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/18350525-morningstar-sunguard-4-5a-pwm-solar-charge-controller-sg-4](https://www.desertcart.gr/products/18350525-morningstar-sunguard-4-5a-pwm-solar-charge-controller-sg-4) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-08-10*