--- product_id: 142928213 title: "HQST 400 Watt 12 Volt Polycrystalline Solar Panel Kit with 30A Negative-Ground PWM LCD Display Charge Controller" brand: "hqst" price: "4552 zł" currency: PLN in_stock: true reviews_count: 8 category: "Lawn Garden" url: https://www.desertcart.pl/products/142928213-hqst-400-watt-12-volt-polycrystalline-solar-panel-kit-30a store_origin: PL region: Poland --- # HQST 400 Watt 12 Volt Polycrystalline Solar Panel Kit with 30A Negative-Ground PWM LCD Display Charge Controller **Brand:** hqst **Price:** 4552 zł **Availability:** ✅ In Stock ## Quick Answers - **What is this?** HQST 400 Watt 12 Volt Polycrystalline Solar Panel Kit with 30A Negative-Ground PWM LCD Display Charge Controller by hqst - **How much does it cost?** 4552 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/142928213-hqst-400-watt-12-volt-polycrystalline-solar-panel-kit-30a) ## Best For - hqst enthusiasts ## Why This Product - Trusted hqst brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Size:PWM-30A Negative-Ground Descriptions HQST 400 Watt Off-Grid Polycrystalline Solar Starter Kit is designed specifically for customers new to solar. This 400w solar kit is great for off-grid applications, such as RVs, trailers, boats and sheds providing many benefits, including, but not limited to, quiet power production and grid independence. This off-grid solar kit comes with the tools necessary for a new system. Start your solar adventure with a HQST Starter Kit! Specifications 100W Polycrystalline Solar Panel Maximum Power at STC (Pmax)： 100 W Optimum Operating Voltage (Vmp): 17.8V Optimum Operating Current (Imp): 5.62A Open Circuit Voltage: (Voc) 22.4V Short Circuit Current: (Isc) 5.92 A Maximum System Voltage: 600 VDC (UL) Junction box: waterproof, IP65 Rated Dimensions: 39.7 x 26.7 x 1.4in.Weight: 16.5 lbs 30A PWM Charge Controller (Negative Grounded) Nominal Voltage: 12/24V auto recognition  Rated Charge Current: 30A  Max. PV Input Power: 12V/450W, 24V/900W  Max. PV Input Voltage: 55 VDC  Self-Consumption: < 22mA/12V; < 16mA/24V   Dimensions: 6.54 x 4.66 x 2.1 inches  Terminals: Up to 8 AWG 20ft 10AWG MC4 Adaptor Cable (A pair) Rating Voltage: 600/1000V Temperature: -40°F to +185°F Mounting Z Brackets (Four sets) 4 Z Shape Solar Panel Brackets 8 Long Cap Bolts and 4 Short Bolts 4 Spring Washers and 4 Washers 4 Nuts Warranty Information Solar panels: 25 years transferable output warranty; 5 years material & workmanship warranty. Accessories: 1 year material & workmanship warranty. If you have any questions regarding this product, please call us at 1 (800) 390-9264 or email sales@myhqsolar.com. ## Features - Designed specifically for customers new to solar. Easy and convenient to install with pre-drilled holes on panels and Z brackets for fast mounting and securing. - Used in various off-grid applications that include 12 and 24 volts arrays, water pumping systems, signaling systems and other off-grid pplications. Great for off-grid applications, such as RVs, trailers, boats, sheds, and cabins. - Warranty: Panels, 5 years material and workmanship warranty and 25 years power output warranty; Accessories, 1 year material & workmanship warranty. - Comes with four 100W 12V polycrystalline solar panels, a 30A PWM LCD charge controller, a pair of 20 ft 10 AWG daptor cables, four set of Z-brackets, and all necessary mounting hardware.With the 30A PWM LCD charge controller, you can expand your system up to a maximum of 400W. - Provides many benefits, including quiet power production and grid independence. Ideal output: 2000Wh per day; ## Images ![HQST 400 Watt 12 Volt Polycrystalline Solar Panel Kit with 30A Negative-Ground PWM LCD Display Charge Controller - Image 1](https://images-na.ssl-images-amazon.com/images/I/51eTQJjduHL.jpg) ![HQST 400 Watt 12 Volt Polycrystalline Solar Panel Kit with 30A Negative-Ground PWM LCD Display Charge Controller - Image 2](https://images-na.ssl-images-amazon.com/images/I/51EtIDrOtYL.jpg) ![HQST 400 Watt 12 Volt Polycrystalline Solar Panel Kit with 30A Negative-Ground PWM LCD Display Charge Controller - Image 3](https://images-na.ssl-images-amazon.com/images/I/4182vaHjWnL.jpg) ![HQST 400 Watt 12 Volt Polycrystalline Solar Panel Kit with 30A Negative-Ground PWM LCD Display Charge Controller - Image 4](https://images-na.ssl-images-amazon.com/images/I/41-HRy2%2Bm%2BL.jpg) ![HQST 400 Watt 12 Volt Polycrystalline Solar Panel Kit with 30A Negative-Ground PWM LCD Display Charge Controller - Image 5](https://images-na.ssl-images-amazon.com/images/I/41WLseZuo8L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐ JOIN THE SOLAR REVOLUTION *by D***E on May 3, 2018* As of today, it has been three months since I had to turn on the infernally noisy DC converter to charge the battery that runs the lights and a few other things in my RV, where I live as a permanent resident. In coastal Oregon, where it's often at least cloudy or foggy, I'm surprised that the panels generate plenty of electricity to keep the DC system going on only one battery. I've bought another battery for the rainy months and may hook it up and wire in an inverter to run some of AC lights or appliances on solar energy, at least part of the year. I'm so happy to have joined the solar revolution and glad to be sending less of my money to fossil fuel companies!The reason for the lost star is that the instructions for setting up the system were not very good. I do not understand why companies cheap out when it comes to writing their manuals and instructions. It would not cost all that much to employ some out-of-work English majors who can explain some fairly complex technical stuff to the lay person who has no experience. I had to spend hours on the internet watching YouTube videos and reading comments and other information about solar systems to figure out how to get this thing set up. Customer service was pretty good, but I would have preferred step-by-step written instructions that include the fact, for example, that you need to get a certain type of fuse for certain parts of the system, and that you probably won't find that fuse locally, so you have to order it.That said, I have no regrets and hope to expand the system someday. ### ⭐⭐⭐⭐⭐ Great solar kit for RV. *by A***R on March 16, 2018* I am very happy with this kit. Easy to install and work's perfectly! ### ⭐⭐⭐⭐⭐ Easy to install and use. *by M***Y on September 19, 2018* Works good for me. Keeps our batteries changed keeping us from having to run the generator. Both of us use CPAC machines and we have stayed here for a week and today is the first time we have had to run the generator. Cloudy and rainy all day. --- ## 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.pl/products/142928213-hqst-400-watt-12-volt-polycrystalline-solar-panel-kit-30a](https://www.desertcart.pl/products/142928213-hqst-400-watt-12-volt-polycrystalline-solar-panel-kit-30a) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-26*