---
product_id: 445216705
title: "SUNCORE S3, Waterproof Seedling Mat with Heat Controller 25x50cm, UL & MET Certified Heating Pad, for Indoor Gardening, Hydroponics, Germination, Cloning, 10\" x 20.75\""
brand: "ac infinity"
price: "€ 50.82"
currency: EUR
in_stock: false
reviews_count: 6
category: "Ac Infinity"
url: https://www.desertcart.fr/products/445216705-suncore-s3-waterproof-seedling-mat-with-heat-controller-25x50cm-ul
store_origin: FR
region: France
---

# IP67 waterproof & durable Fast far-infrared heating Adjustable heat dial SUNCORE S3, Waterproof Seedling Mat with Heat Controller 25x50cm, UL & MET Certified Heating Pad, for Indoor Gardening, Hydroponics, Germination, Cloning, 10" x 20.75"

**Brand:** ac infinity
**Price:** € 50.82
**Availability:** ❌ Out of Stock

## Summary

> 🌱 Heat up your indoor garden game with precision and safety!

## Quick Answers

- **What is this?** SUNCORE S3, Waterproof Seedling Mat with Heat Controller 25x50cm, UL & MET Certified Heating Pad, for Indoor Gardening, Hydroponics, Germination, Cloning, 10" x 20.75" by ac infinity
- **How much does it cost?** € 50.82 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/445216705-suncore-s3-waterproof-seedling-mat-with-heat-controller-25x50cm-ul)

## 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

- • **Built to Last & Resist:** Quad-layer IP67 waterproof PVC ensures durability and easy cleaning.
- • **Precision Heat Control:** Adjustable dial lets you fine-tune warmth without disrupting plant growth.
- • **Certified Safety Assurance:** UL & MET certifications guarantee reliable, worry-free operation.
- • **Accelerate Your Growth Cycle:** Far-infrared film heats up rapidly for faster germination success.
- • **Perfect for Indoor Gardeners:** Compact 25x50cm size fits seamlessly into hydroponics and seedling setups.

## Overview

The AC Infinity SUNCORE S3 is a UL & MET certified waterproof seedling heating mat featuring fast-acting far-infrared technology and an adjustable heat dial. Designed with durable IP67 quad-layer PVC, it ensures even warmth distribution to boost germination and cloning success in indoor gardening and hydroponics setups.

## Description

Great prices on your favourite Gardening brands, and free delivery on eligible orders.

Review: Do not buy!! - This product instead of helping to grow lions mane mushrooms has killed the mushrooms, burnt THROUGH the container and also burnt the carpet underneath. This was on the 'low temp' setting. I only gave it 1 star because I couldn't give zero!!
Review: This kept my germination dome warm and humid. The plants LOVE it. I'm glad I bought it. It's a bit tricky to roll it back up to store in the included bag... but mostly because I worry about rolling it up too tightly. I grow Devil's lettuce and using this with the Ac infinity germ dome I had leaves above soil (cotyledons) in 2 days.

## 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 | 99,737 in Garden ( See Top 100 in Garden ) 79 in Plant Heating Mats |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,340) |
| Date First Available | 5 Mar. 2022 |
| Item model number | GT-AHWM-LB0L |
| Manufacturer | AC Infinity |
| Moisture needs | Moderate Watering |
| Part number | GT-AHWM-LB0L |
| Product Dimensions | 52.71 x 7.62 x 0.23 cm; 490 g |
| Soil type | Sandy Soil |

## Product Details

- **Brand:** AC Infinity
- **Colour:** Black, 10" x 20.75"
- **Indoor/Outdoor usage:** Indoor
- **Material feature:** Waterproof
- **Moisture needs:** Moderate Watering
- **Soil type:** Sandy Soil
- **Style:** 10" x 20.75"
- **UPC:** 819137023468
- **Unit count:** 1.0 count

## Images

![SUNCORE S3, Waterproof Seedling Mat with Heat Controller 25x50cm, UL & MET Certified Heating Pad, for Indoor Gardening, Hydroponics, Germination, Cloning, 10" x 20.75" - Image 1](https://m.media-amazon.com/images/I/619kRaHXdbL.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

### ⭐ Do not buy!!
*by N***R on 11 April 2023*

This product instead of helping to grow lions mane mushrooms has killed the mushrooms, burnt THROUGH the container and also burnt the carpet underneath. This was on the 'low temp' setting. I only gave it 1 star because I couldn't give zero!!

### ⭐⭐⭐⭐⭐ Review
*by D***. on 23 November 2024*

This kept my germination dome warm and humid. The plants LOVE it. I'm glad I bought it. It's a bit tricky to roll it back up to store in the included bag... but mostly because I worry about rolling it up too tightly. I grow Devil's lettuce and using this with the Ac infinity germ dome I had leaves above soil (cotyledons) in 2 days.

### ⭐⭐⭐⭐⭐ Review
*by A***A on 13 October 2025*

Schafft tatsächlich 26 Grad. Tut somit was es soll. Gerne wieder

## 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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**Shop now:** [https://www.desertcart.fr/products/445216705-suncore-s3-waterproof-seedling-mat-with-heat-controller-25x50cm-ul](https://www.desertcart.fr/products/445216705-suncore-s3-waterproof-seedling-mat-with-heat-controller-25x50cm-ul)

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-04-23*