---
product_id: 740967006
title: "SUNCORE H3, Seedling Mat 25x50cm with Digital Thermostat Controller for Exact Temperature Levels, Waterproof Heating Pad for Indoor Gardening, Hydroponics, Germination Cloning 10\" x 20.75\""
brand: "ac infinity"
price: "€ 111.95"
currency: EUR
in_stock: true
reviews_count: 6
url: https://www.desertcart.fi/products/740967006-suncore-h3-seedling-mat-25x50cm-with-digital-thermostat-controller-exact
store_origin: FI
region: Finland
---

# Waterproof IP-67 quad-layer Far-infrared even heat Precise digital thermostat SUNCORE H3, Seedling Mat 25x50cm with Digital Thermostat Controller for Exact Temperature Levels, Waterproof Heating Pad for Indoor Gardening, Hydroponics, Germination Cloning 10" x 20.75"

**Brand:** ac infinity
**Price:** € 111.95
**Availability:** ✅ In Stock

## Summary

> 🌱 Heat your seeds, not your worries — grow smarter with AC Infinity!

## Quick Answers

- **What is this?** SUNCORE H3, Seedling Mat 25x50cm with Digital Thermostat Controller for Exact Temperature Levels, Waterproof Heating Pad for Indoor Gardening, Hydroponics, Germination Cloning 10" x 20.75" by ac infinity
- **How much does it cost?** € 111.95 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/740967006-suncore-h3-seedling-mat-25x50cm-with-digital-thermostat-controller-exact)

## 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

- • **Trusted by Pros:** Highly rated with 4.5 stars from 1,600+ growers who demand quality and reliability in their germination tools.
- • **Durable & Waterproof:** IP-67 rated quad-layer PVC construction resists wear, tear, and spills—built to last through countless grows.
- • **Compact & Lightweight:** Sleek 10” x 20.75” design fits perfectly in any indoor garden setup without bulk or clutter.
- • **Even Heat Distribution:** Far-infrared technology ensures consistent warmth with zero hot spots—safer and more effective than coil mats.
- • **Precision Temperature Control:** Dial in exact heat levels with a digital thermostat for flawless seed germination every time.

## Overview

The AC Infinity SUNCORE H3 Seedling Mat is a 10” x 20.75” waterproof heating pad featuring a digital thermostat for precise temperature control. Utilizing far-infrared technology, it delivers even heat distribution without hot spots, ensuring optimal seed germination and cloning success. Crafted with durable IP-67 quad-layer PVC, this lightweight mat is designed for indoor gardening, hydroponics, and seed starting, trusted by thousands of growers for consistent, professional-grade performance.

## Description

AC Infinity SUNCORE H3, Seedling Mat 25x50cm with Digital Thermostat Controller for Exact Temperature Levels, Waterproof Heating Pad for Indoor Gardening, Hydroponics, Germination Cloning 10" x 20.75" : desertcart.co.uk: Everything Else

Review: American plug - Comes with American plug
Review: If you want quality products that do what you need them to do and keep on doing it then ac infinity is the brand to go with. Their products just feel like quality and they perform just as good as they feel. I’m so glad they have focused so much on their line of indoor gardening equipment because it gives growers a high quality option. Anyway, these mats are perfect! I grow thousands of out her plant seedlings and I prefer to use a heat mat while germinating them. The past few mats have fallen short because they use a thermostat that must be inserted into the soil to read the temp. While this may not seem like a big deal, I’ve had the sensor come out before and narrowly avoided frying my seedlings! These mats however use a dial that you can tune to perfectly set your desired temperature (I use a laser thermometer for soil temps) not only is that helpful but it makes it much simpler to achieve your desired results. Another thing I really like about these mats is they are not bulky at all. The technology they use is infrared and not heat coils. Which means it’s EVEN HEAT and with no hot spots like coil mats have. I feel like that’s a much safer option as heat coils, while rare, can short out. They do take slightly longer to reach peak heat but does a few extra minutes really matter when germinating seeds? Not really. If you are looking for a high quality heat mat that will outperform any others you’re going to find, just do yourself a favor and go with these. They won’t disappoint!!

## Features

- 10” x 20.75” heating mat to accelerate and improve the success of seed starting and germination.
- Digital heat controller displays real-time mat temperature, which can be adjusted to exact levels.
- Eliminates the guesswork of determining heat levels to germinate any seed with no risk of scorching.
- Features innovative far-infrared film that warms faster and evenly distributes heat across the mat.
- Crafted with IP-67 quad-layer PVC that is flexible, resistant to wear and tear, and easy to wipe clean.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D94XY74G |
| ASIN  | B0D94XY74G |
| Best Sellers Rank | 163,518 in Garden ( See Top 100 in Garden ) 121 in Plant Heating Mats |
| Brand | AC Infinity |
| Country of origin | China |
| Country of origin  | China |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,657) |
| Customer reviews | 4.5 4.5 out of 5 stars (1,657) |
| Date First Available | 13 Feb. 2025 |
| Item model number  | AC-SMH3 |
| Manufacturer  | AC Infinity |
| Product Dimensions  | 52.7 x 25.4 x 0.22 cm; 458 g |
| Units | 1.0 Count |

## Product Details

- **Brand:** AC Infinity
- **Colour:** Grün
- **Item weight:** 0.46 Kilograms
- **UPC:** 819137024540
- **Unit count:** 1.0 Count

## Images

![SUNCORE H3, Seedling Mat 25x50cm with Digital Thermostat Controller for Exact Temperature Levels, Waterproof Heating Pad for Indoor Gardening, Hydroponics, Germination Cloning 10" x 20.75" - Image 1](https://m.media-amazon.com/images/I/61GMXMTgp4L.jpg)

## Customer Reviews

### ⭐ American plug
*by A***A on 7 December 2023*

Comes with American plug

### ⭐⭐⭐⭐⭐ Review
*by A***W on 11 June 2023*

If you want quality products that do what you need them to do and keep on doing it then ac infinity is the brand to go with. Their products just feel like quality and they perform just as good as they feel. I’m so glad they have focused so much on their line of indoor gardening equipment because it gives growers a high quality option. Anyway, these mats are perfect! I grow thousands of out her plant seedlings and I prefer to use a heat mat while germinating them. The past few mats have fallen short because they use a thermostat that must be inserted into the soil to read the temp. While this may not seem like a big deal, I’ve had the sensor come out before and narrowly avoided frying my seedlings! These mats however use a dial that you can tune to perfectly set your desired temperature (I use a laser thermometer for soil temps) not only is that helpful but it makes it much simpler to achieve your desired results. Another thing I really like about these mats is they are not bulky at all. The technology they use is infrared and not heat coils. Which means it’s EVEN HEAT and with no hot spots like coil mats have. I feel like that’s a much safer option as heat coils, while rare, can short out. They do take slightly longer to reach peak heat but does a few extra minutes really matter when germinating seeds? Not really. If you are looking for a high quality heat mat that will outperform any others you’re going to find, just do yourself a favor and go with these. They won’t disappoint!!

### ⭐⭐⭐⭐⭐ Review
*by Y***Y on 8 February 2025*

I'm NOT getting paid for this review and not getting compensated in any form or fashion. I love AC Infinity company, their customer service is second to none and they have top quality growing supplies. I was excited when I found out that a digital version of the heating mat is coming out which I thought would be more convenient and I wouldn't have to use a thermometer/hygrometer to put inside the dome to monitor temperature and humidity to have proper germination and/or cloning rooting success rates but when I received it I was quickly disappointed because first of all for those in colder climates will have issues getting temperature to 80° or above 80° because for some reason even when I set the temperature to get to 110° it takes quite a while to climb to 102° but when I check the temperature with a couple of separate thermometers It shows that the temperature is around 74 to 76° and in order to get it to climb up I would have to put something under the heating mat like a piece of plywood or styrofoam and I add one of the Amazon bubble envelopes too avoid losing any of the heat radiating down to the floor and that definitely helps but if someone needs higher temperatures like 84° for instance I don't think they will be able to achieve that with this heating mat. For the most part the temperature that's needed for my plants for germination is 78 to 80° which is the sweet spot and to get there I have to set the temperature to 102° and it fluctuates between 100 and 102°, which actually keeps the temperature at 78 to 80° F with a piece of plywood under the heating mat and a couple Amazon bubble envelopes stacked on top of each other. The one that I would recommend is the same one but with the dial/knob which works flawlessly and I would need to have the temperature either in the middle or between the first quarter and the middle. Just make sure you use a thermometer/hygrometer inside the dome to dial in temperature and humidity. Here's the hygrometer / thermometer set of four that I highly recommend and they have two options either without a probe or with the probe. The ones with the probe you can only measure the temperature with the probe but to measure temperature and humidity you would need to unplug the probe and put the device itself inside the dome but if you never need to check only temperature then get the ones without the probe because it's a little cheaper and you won't have that probe port open that can get dirty and something can get stuck in there. These are a lot more reliable than those really cheap ones, the black rectangular ones. Here's the link 👇 4PCS Mini Digital Hygrometer and Thermometer Reptile Thermometer with Extend Probe (Only Temperature) Indoor Temp and Humidity Meter with Magnet https://a.co/d/aYE6XyD I hope this review helps 😊

## Frequently Bought Together

- AC Infinity SUNCORE H3, Seedling Mat 10” x 20.75” with Digital Thermostat Controller for Exact Temperature Levels, Waterproof Heating Pad for Indoor Gardening, Hydroponics, Germination, Cloning
- AC Infinity Heavy Duty 3mm Thick Humidity Dome Germination Kit with LED Grow Light Bars, Drip Tray, Seedling Tray, Vented Height Extension Panels for Seed Starting, Cloning, Indoor Gardening
- 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 Finland*
*Store origin: FI*
*Last updated: 2026-03-08*