--- product_id: 18940476 title: "NEW 12V 20A/30A/40A High Efficiency MPPT Solar Panel Charge Controller Regulator Charger, Safe With LCD Display & RS232 PC Smart Control , CE (Current 40A)" brand: "listen" price: "£5.00" currency: GBP in_stock: false url: https://www.desertcart.co.uk/products/18940476-new-12v-20a-30a-40a-high-efficiency-mppt-solar-panel store_origin: GB region: United Kingdom --- # NEW 12V 20A/30A/40A High Efficiency MPPT Solar Panel Charge Controller Regulator Charger, Safe With LCD Display & RS232 PC Smart Control , CE (Current 40A) **Brand:** listen **Price:** £5.00 **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** NEW 12V 20A/30A/40A High Efficiency MPPT Solar Panel Charge Controller Regulator Charger, Safe With LCD Display & RS232 PC Smart Control , CE (Current 40A) by listen - **How much does it cost?** £5.00 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/18940476-new-12v-20a-30a-40a-high-efficiency-mppt-solar-panel) ## Best For - listen enthusiasts ## Why This Product - Trusted listen brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Description This kind of solar charge streetlight controller is special design for small off-grid solar charge generation system. Appearance is elegant, operations are easy. It also makes the course of which wind generator and solar panels charge to batteries safely and efficiently. Features Battery Maximum Charging Current Smart Limiting Solar Charge to Battery Independently; Complement Intelligently Every Controller Has One DC Output, Each Output Has 9 Output Modes Manual Brake Using or Not Using Solar to Charge to Battery Could be Set Manually Using or Not Using Output Could be Set Manually RS232Real-time Communication Procedure Could be Upgraded by RS232 PC and Controller Both Could Set Parameters LCD Display Multi-level Menu; Intelligent Button Settin High efficiency MPPT charging mode Intelligent limiting of batteries max current. Batteries maximum capacity could be set through this controller. According to the set maximum capacity, controller could calculate the maximum charging current. Then batteries will be protected. DC output has 6 output modes Over-charge , Over-discharge and Overload protections for battery Battery Maximum Charging Current Smart Limiting Solar charging manual switch. On the controller you can manually set whether using solar charge to battery. DC output manual switch. Users could manually set whether use DC output. LCD Display Multi-level Menu; Intelligent Button Settings RS232 interface. ## Features - This solar controller can be applied to the following occasions: 1). Outdoor environment monitoring system 2). Automatic control system for agriculture and garden 3). Solar power system 4). Communication station, WIFI hotspot 5). Street lighting system 6). other systems which are supplied by solar energy. For monitor the volt and electricity output volume statistics when charge or discharge is proceed. - Large LCD display screen, clearly indicate the status, data. - With RS232 port interface, easily setting & control on PC. - High efficiency MPPT charging. Equipped with industrial-grade microprocessor to control the charge and discharge process. And, it has perfect highly effiecient and liable battery charge and discharge period management. - Sophisticated electric protection production, including over-current protection, load short-circuit protection and low-voltage protection. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00XZUY5EO | | Brand Name | LISTEN | | Item Weight | 1.5 Kilograms | | Manufacturer | LISTEN | ## Product Details - **Brand:** LISTEN - **Item Weight:** 1.5 Kilograms - **Manufacturer:** LISTEN ## Images ![NEW 12V 20A/30A/40A High Efficiency MPPT Solar Panel Charge Controller Regulator Charger, Safe With LCD Display & RS232 PC Smart Control , CE (Current 40A) - Image 1](https://m.media-amazon.com/images/I/71B64VO6MML.jpg) ![NEW 12V 20A/30A/40A High Efficiency MPPT Solar Panel Charge Controller Regulator Charger, Safe With LCD Display & RS232 PC Smart Control , CE (Current 40A) - Image 2](https://m.media-amazon.com/images/I/41kfpOBO5iL.jpg) ![NEW 12V 20A/30A/40A High Efficiency MPPT Solar Panel Charge Controller Regulator Charger, Safe With LCD Display & RS232 PC Smart Control , CE (Current 40A) - Image 3](https://m.media-amazon.com/images/I/41XfcTJ7rtL.jpg) ![NEW 12V 20A/30A/40A High Efficiency MPPT Solar Panel Charge Controller Regulator Charger, Safe With LCD Display & RS232 PC Smart Control , CE (Current 40A) - Image 4](https://m.media-amazon.com/images/I/41DucLXcK1L.jpg) ![NEW 12V 20A/30A/40A High Efficiency MPPT Solar Panel Charge Controller Regulator Charger, Safe With LCD Display & RS232 PC Smart Control , CE (Current 40A) - Image 5](https://m.media-amazon.com/images/I/71TG6INsPhL.jpg) --- ## 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.co.uk/products/18940476-new-12v-20a-30a-40a-high-efficiency-mppt-solar-panel](https://www.desertcart.co.uk/products/18940476-new-12v-20a-30a-40a-high-efficiency-mppt-solar-panel) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-18*