--- product_id: 458859969 title: "AC Infinity SUNCORE S3, Waterproof Seedling Mat with Heat Controller 10\" x 20.75\", UL & MET Certified Heating Pad, for Indoor Gardening, Hydroponics, Germination, Cloning" brand: "ac infinity" price: "18981 kr" currency: ISK in_stock: true reviews_count: 5 category: "Ac Infinity" url: https://www.desertcart.is/products/458859969-ac-infinity-suncore-s3-waterproof-seedling-mat-with-heat-controller store_origin: IS region: Iceland --- # AC Infinity SUNCORE S3, Waterproof Seedling Mat with Heat Controller 10" x 20.75", UL & MET Certified Heating Pad, for Indoor Gardening, Hydroponics, Germination, Cloning **Brand:** ac infinity **Price:** 18981 kr **Availability:** ✅ In Stock ## Quick Answers - **What is this?** AC Infinity SUNCORE S3, Waterproof Seedling Mat with Heat Controller 10" x 20.75", UL & MET Certified Heating Pad, for Indoor Gardening, Hydroponics, Germination, Cloning by ac infinity - **How much does it cost?** 18981 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/458859969-ac-infinity-suncore-s3-waterproof-seedling-mat-with-heat-controller) ## Best For - ac infinity enthusiasts ## Why This Product - Trusted ac infinity brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Product DescriptionA seedling mat designed to improve germination success and accelerate your seeds’ growth process by emitting steady heat. Each mat is lined with an innovative far-infrared film that provides even heating distribution. Because it produces softer warmth output than wire coils, your seeds will be protected from being scorched. It uses a durable quad-layer PVC that is resistant to wear and tear and is easy to clean and roll for storage. Includes a water-resistant nylon drawstring bag.Innovative TechnologyEach mat for seedling growth is lined with an innovative far-infrared film that provides even heating distribution while producing softer warmth output than wire coils, protecting your seeds from scorching. Its connected heating controller supports this protection, featuring an adjustable dial that sets your desired heat output. Control the mat temperature over time without having to turn it on and off, which can cause the seed to rot due to extreme changes in temperature. Threshold levels include low, medium, and high.Safety CertifiedThis heating mat is UL-certified (E518635), achieving safety standards for electric heating appliances and electrically heated warming pads. It also meets MET standards (certificate #E115128) for electrical appliance safety, ensuring harm-free use in indoor heating applications. These certifications are verifiable through their respective online directories under AC Infinity Inc. The heating mat is additionally rated for fire resistance and safe temperature regulation. Achieving an IP-67 rating, the heating mat is sealed along its seams to keep water and dust from seeping in. This ingress protection is extended to the 60-inch power cord, its connection specially sealed to prevent electrical damage from occurring. Review: Calienta muy muy ligero - No calienta tanto, servira para algunas semillas, no para otro uso Review: Gute Heizmatte - Schafft tatsächlich 26 Grad. Tut somit was es soll. Gerne wieder ## Features - Innovative Far-Infrared Heating, Connected Heating Controller, Safety Certified, Water & Dust Resistant ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09TNGKDPJ | | Brand | AC Infinity | | Colour | Black, 10" X 20.75" | | Country of Origin | USA | | Customer Reviews | 4.6 out of 5 stars 1,364 Reviews | | Item Dimensions | 52.7 x 25.4 x 0.2 Centimeters | | Item dimensions L x W x H | 52.7 x 25.4 x 0.2 Centimeters | | Manufacturer Part Number | GT-AHWM-LB0L | | Material | Plastic | | Model number | GT-AHWM-LB0L | | Number of settings | 3 | | Special Feature | Innovative Far-Infrared Heating, Connected Heating Controller, Safety Certified, Water & Dust Resistant Special Feature Innovative Far-Infrared Heating, Connected Heating Controller, Safety Certified, Water & Dust Resistant See more | | Special Features | Innovative Far-Infrared Heating, Connected Heating Controller, Safety Certified, Water & Dust Resistant | | UPC | 819137023468 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** AC Infinity - **Indoor/Outdoor Usage:** Indoor - **Net Quantity:** 1.0 Count - **Soil Type:** Sandy Soil - **Style:** 10" x 20.75" - **UPC:** 819137023468 ## Images ![AC Infinity SUNCORE S3, Waterproof Seedling Mat with Heat Controller 10" x 20.75", UL & MET Certified Heating Pad, for Indoor Gardening, Hydroponics, Germination, Cloning - Image 1](https://m.media-amazon.com/images/I/61hGv1kBYKL.jpg) ![AC Infinity SUNCORE S3, Waterproof Seedling Mat with Heat Controller 10" x 20.75", UL & MET Certified Heating Pad, for Indoor Gardening, Hydroponics, Germination, Cloning - Image 2](https://m.media-amazon.com/images/I/71taOwBdtQL.jpg) ![AC Infinity SUNCORE S3, Waterproof Seedling Mat with Heat Controller 10" x 20.75", UL & MET Certified Heating Pad, for Indoor Gardening, Hydroponics, Germination, Cloning - Image 3](https://m.media-amazon.com/images/I/51G8JGuucfL.jpg) ![AC Infinity SUNCORE S3, Waterproof Seedling Mat with Heat Controller 10" x 20.75", UL & MET Certified Heating Pad, for Indoor Gardening, Hydroponics, Germination, Cloning - Image 4](https://m.media-amazon.com/images/I/71TVjHEwbFL.jpg) ![AC Infinity SUNCORE S3, Waterproof Seedling Mat with Heat Controller 10" x 20.75", UL & MET Certified Heating Pad, for Indoor Gardening, Hydroponics, Germination, Cloning - Image 5](https://m.media-amazon.com/images/I/61Pnf+FV89L.jpg) ## Questions & Answers **Q: How much watts and amps does this pull?** A: Watts (power) = Amps X Volts Description says matt requires 105W in power/energy to operate Common current in the US is 120V Just Solve for X W= ? X 120 ---> W/V equals A 105W/120V = .875A **Q: Can you use a thermostat with this?** A: So far out of four AC Infinity Suncore mats [2X 48x20] [2X 20x20] THREE mats overheat my seed trays. I've lost FIVE 72 cell trays all seeded. Puzzled by NO germination, I used a meat thermometer and the readings in three of the trays was 95-100*F and the fourth was 75*F. Either AC Infinity Suncore mats have zero quality control or the overall quality is POOR. Be aware these mats will bake your seeds killing the seed germ. If you have them use a probe thermostat. **Q: What temperature is L M H?** A: Put your seed tray under a grow light, preferably with a dome. Then lay a thermometer underneath the dome on top of the seed tray. Then turn the thermostat to medium; Wait for about 6 hours and see what the temp. is.In my case it was about 85 degrees ; I then turned the thermostat between low and medium and it went to 82 degrees.( I put a piece of insulation between the wood shelf and the seed mat.) My seed tray is in the basement; The air temp. is 67 degrees .So the mat raised the temp in the seed tray about 15 degrees. Now, I hope I have good germinating seeds. **Q: Can this be hvac taped to the back of a terrarium for inside ambient heat?** A: I would not that's not what it's for. ## Customer Reviews ### ⭐⭐⭐ Calienta muy muy ligero *by D***D on 13 November 2023* No calienta tanto, servira para algunas semillas, no para otro uso ### ⭐⭐⭐⭐⭐ Gute Heizmatte *by A***A on 13 October 2025* Schafft tatsächlich 26 Grad. Tut somit was es soll. Gerne wieder ### ⭐⭐⭐⭐⭐ Great Product! *by A***F on 28 March 2026* Really nice quality heat mat. Works exactly as it should. Never had to go higher than the lowest setting. Perfect size for the standard propagation tray and dome. Good value for the quality. ## Frequently Bought Together - AC Infinity SUNCORE S3, Waterproof Seedling Mat with Heat Controller 10" x 20.75", UL & MET Certified Heating Pad, for Indoor Gardening, Hydroponics, Germination, Cloning - AC Infinity Heavy-Duty Humidity Dome with Full Spectrum LED Grow Light Bars, Samsung LM301H EVO Diodes, Drip Tray, 5x8 Cell Seedling Tray, 3mm Thick Dome and Vented Extension Panels, for Seed Starting - AC Infinity CLOUDFORGE T3, Plant Humidifier 4.5L with VPD Humidity Controls, 10-Level Precision Vaporizer, Extendable Targeting Hose and No-Leak Seal for Grow Tents --- ## 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.is/products/458859969-ac-infinity-suncore-s3-waterproof-seedling-mat-with-heat-controller](https://www.desertcart.is/products/458859969-ac-infinity-suncore-s3-waterproof-seedling-mat-with-heat-controller) --- *Product available on Desertcart Iceland* *Store origin: IS* *Last updated: 2026-05-09*