---
product_id: 413591133
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: "6838 kr"
currency: ISK
in_stock: true
reviews_count: 13
category: "Ac Infinity"
url: https://www.desertcart.is/products/413591133-ac-infinity-suncore-s3-waterproof-seedling-mat-with-heat-controller
store_origin: IS
region: Iceland
---

# Waterproof IP-67 quad-layer PVC Fast far-infrared heating Adjustable heat dial control 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:** 6838 kr
**Availability:** ✅ In Stock

## Summary

> 🌱 Heat up your green thumb game with precision and style!

## 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?** 6838 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/413591133-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

## Key Features

- • **Precision Growth Control:** Adjustable dial lets you fine-tune heat without disrupting your plants’ growth cycle.
- • **Certified Safety Assurance:** UL & MET certifications guarantee reliable, worry-free operation every season.
- • **Compact & Lightweight Design:** Slim 10" x 20.75" mat fits seamlessly into any indoor gardening setup.
- • **Built to Last & Easy to Clean:** Durable, waterproof IP-67 quad-layer PVC resists wear and spills—perfect for busy indoor gardeners.
- • **Rapid, Even Heat Distribution:** Far-infrared film ensures seedlings get consistent warmth for faster germination.

## Overview

The SUNCORE S3 is a UL & MET certified waterproof seedling heating mat featuring fast-acting far-infrared technology and an adjustable heat controller. Its durable IP-67 quad-layer PVC construction ensures longevity and easy maintenance, making it an essential tool for indoor gardening, hydroponics, germination, and cloning. Designed to accelerate seed starting success with even warmth and precise temperature control.

## Description

desertcart.com : 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 : Patio, Lawn & Garden

Review: Seed heat meat that does what it was designed to do - This heats evenly and kept my seedlings worm in a cooler part of the house. It did not have a timer so I just plugged it into a lamp timer. Simple and easy to use.
Review: Works great - I was surprised by how good the quality of this mat is. The adjustable temperature really works, I tested the temperatures before trying the seeds on it. Low is barely warm, high is a little too warm even for my chilly basement, and I found that about 1/3 past medium turned out perfect. Almost all of my bell pepper seeds came up. I just ordered another of these so I can start the rest of my seeds at once. I am completely new at starting plants from seeds but this makes it easy. I highly recommend this mat!

## Features

- A heating mat designed to accelerate and improve the success of seed starting and germination.
- Features an innovative far-infrared film that warms up faster, and distributes soft heat more evenly.
- Adjustable dial controls heat output over time, without turning the mat on/off which disrupts growth.
- Crafted with IP-67 quad-layer PVC that’s flexible, resistant to wear-and-tear, and easy to wipe clean.
- Verifiable UL (E518635) & MET (E115128) certifications for electrical safety thru online directories.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09TNGKDPJ |
| Best Sellers Rank | #36,537 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #48 in Plant Heating Mats |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,400) |
| Item Weight | 1.08 pounds |
| Item model number | GT-AHWM-LB0L |
| Manufacturer | AC Infinity |
| Product Dimensions | 20.75 x 3 x 0.09 inches |

## Product Details

- **Brand:** AC Infinity
- **Color:** Black, 10" x 20.75"
- **Indoor/Outdoor Usage:** Indoor
- **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)

## 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

### ⭐⭐⭐⭐⭐ Seed heat meat that does what it was designed to do
*by D***W on October 10, 2025*

This heats evenly and kept my seedlings worm in a cooler part of the house. It did not have a timer so I just plugged it into a lamp timer. Simple and easy to use.

### ⭐⭐⭐⭐⭐ Works great
*by D***Y on April 2, 2023*

I was surprised by how good the quality of this mat is. The adjustable temperature really works, I tested the temperatures before trying the seeds on it. Low is barely warm, high is a little too warm even for my chilly basement, and I found that about 1/3 past medium turned out perfect. Almost all of my bell pepper seeds came up. I just ordered another of these so I can start the rest of my seeds at once. I am completely new at starting plants from seeds but this makes it easy. I highly recommend this mat!

### ⭐⭐⭐⭐⭐ Plain and simple heat mat, basic and good
*by S***Y on November 22, 2023*

I used this very basic heat mat to warm some transplants to stimulate root growth and it works well. You plug it in, under the little greenhouse dome you may be using and the gentle heat from the mat does the rest. It's basic and it works well with no complaints . Did not monitor temperature, so I took it at face value, nothing was over-heated or damaged, so it's fine. Just needed to provide steady heat to my cuttings and did not go the whole "scientific" route of monitoring, just plug and play. Very basic, works fine IMO and I'd buy one again, and recommend for simple, basic needs.

## 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

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-24*