Skip to product information

AC Infinity SUNCORE S3, Seedling Heat Mat with Heat Controller, IP-67 Waterproof, 10" x 20.75"

AC Infinity

32 total reviews

Regular price
Price: $28.99 USD
Regular price
List Price: $0.00 USD
Sale price
Price: $28.99 USD
View Cart

Bulk / Commercial Pricing

Email us or call 814-470-8368 TODAY!

Interest-Free Financing

Checkout and pay with Sezzle or Shop Pay Installments.

Availability: 15 in stock

Estimated Arrival: Between Jul 19 and Jul 24.

SAVE $10 on orders over $200 | Use Coupon Code: KEEP10

00 Days
00 Hours
00 Minutes
00 Seconds

Why Buy From Grow Tents Depot
  • Heating Mat for Seed Starting and Germination: Designed to enhance the success of seed starting and germination, this heating mat employs innovative far-infrared film for faster warming and more even heat distribution. An adjustable dial facilitates the control of heat output over time, eliminating the growth-disruptive need to repeatedly turn the mat on and off.
  • Durable and Easy-to-clean Construction: Crafted with a four-layered IP-67 PVC, this mat is flexible, resistant to wear and tear, and remarkably easy to wipe clean. It offers a reliable way to boost the rooting stage's success in environments like basements and terrariums, make homebrewed or fermented beverages, and heat reptile pet enclosures.
  • Innovative Technology: Each mat features a lining of innovative far-infrared film for even heating distribution and gentler warmth output than wire coils which significantly reduces the risk of seed scorching. In addition, the heating controller comes with an adjustable dial for setting your desired heat output without having to turn the device on and off, thereby preventing possible seed rot due to extreme temperature fluctuation. The dial features low, medium, and high threshold levels.
  • Safety Certified: This heating mat comes with UL (E518635) and MET (E115128) certifications - a guarantee of safety standards for electrical heating appliances, electrically heated warming pads, and electrical appliance safety. These certifications are verifiable under AC Infinity Inc. through respective online directories. Additionally, the mat is fire resistant, offers safe temperature regulation, and is sealed along its seams (IP-67 rating) to prevent the ingress of water and dust - a feature extended to the 60-inch power cord specifically sealed to prevent electrical damage.
  • Optimal Rooting Environment: This heating mat provides the perfect environment for indoor seed germination and propagation. With a steady temperature range between 80-87°F (approximately 27-31°C), it heats the rooting area substantially, up to 20°F above the ambient air temperature. Its durable four-layer PVC construction is wear-and-tear resistant, easy to clean, and rollable for storage convenience.
  • Specifications
  • Manufacturer: AC Infinity Inc.
  • Product Name: SUNCORE S3
  • Product Model: AC-SMS3
  • UPC Code: 819137023468
  • Product and Mounting Dimensions
  • Total Dimensions: 10 x 20.75 in. (25.4 x 52.7 cm)
  • Product Performance and Technical Specs
  • Outer Material: Multilayer PVC
  • Heating Material: Far Infrared Film
  • Temperature Range: 80-87°F
  • Waterproof Rating: IP-67
  • Operating Voltage: 100-125V AC
  • Max Power Draw: 20 W
  • Power Source: Wall Outlet
  • Data Sheet
  • Download the Product Manual: here
  • Download the MET Certification: here
  • Download the UL Certification: here
  • Price Match Guarantee
  • Shop safe knowing that Grow Tents Depot offers the lowest prices on all of our products - all the time - guaranteed!
  • We work very hard to ensure that we always have the absolute best prices online, so we make this guarantee knowing that if you find a lower price somewhere else, we will match or even beat our competitor's price! Simply reach out to us with a screenshot and link of our competitor's price (including shipping) and let us make you an offer! If you have already purchased with us and you find a better price within one week of your order, let us know and we will issue a refund for the difference!
  • Our 100% price match guarantee has some limitations:
  • -Promotions such as rebates, "buy one, get one free", and other discounts are not eligible.
  • -The item must be in stock on the competitors website when you request your price match.
  • -The competitor must be an online store and may not have a retail location.
  • -The website cannot be a discounter or auction website (e.g. Amazon, eBay, Overstock, etc.).
  • -The competitor must be an authorized retailer of the product in question.
  • -The price match applies to the item price and the shipping charges but excludes sales tax.
  • -On rare occasions, we reserve the right to refuse a price match if we would incur a loss.
  • Get growing today!
  • Shipping, Returns, and Cancellations
  • Order Confirmation:
  • As soon as your order is placed, an order confirmation e-mail will be sent to you. This means that your order has been successfully entered into our system and that we have pre-authorized your payment method for the purchase. In rare cases, if your product is unavailable or delayed, we will contact you and see if you would like to either wait for your item(s) to become available, change your order, or simply be refunded for your cancelled item(s). If your item(s) are immediately available, we will process your order and arrange for soonest possible shipment. Please note that once the order is processed we are unable to change the shipping address.
  • Order Shipment:
  • We offer FREE SHIPPING on all orders and currently service the lower 48 states. Most items are shipped within 1 to 3 business days and shipping time is typically between 1 to 7 business days. There are some products that have a slightly longer lead time and this will be indicated on the individual product pages if applicable. Once your order has shipped, we will send you the tracking information as soon as it becomes available. If a week or more has gone by and you still have not received the tracking information (or the number is not working), please reach out to us right away at If you are in Alaska, Hawaii, or outside of the US and would like to place an order: we may be able to ship to you, but you will need to reach out to us for a custom shipping quote.
  • Cancellations and Refunds:
  • If you need to cancel your order, please reach out to us as soon as possible. Cancelled orders are subject to a 5% administrative fee (for credit card, debit card, Amazon Pay, Coinbase, and Facebook orders) or an 8% administrative fee (for Shop Pay Installments and Sezzle orders). We can accommodate most cancellation and refund requests, however if a product has been arranged to ship or has shipped, then the item will be treated as a return and will potentially be subject to return shipping costs and restocking fees. Any refunds that may be issued will only be issued to the original payment method used when placing your order and only after the return has been confirmed to be received back in its original condition.
  • Returns:
  • Please see our full return policy at the footer of this page for brand-specific details. A restocking fee of 5-25% may apply on returns within the dates of the brand-specific return policies. If you would like to proceed with a return, please reach out to us to receive the precise return instructions and clarification on the restocking fees for your item(s).
  • Warranty
  • Grow Tents Depot only sells brand new products, never used, and therefore all items come with full manufacturer warranties if offered. Please note that Grow Tents Depot is not responsible for replacing or repairing your product while under warranty as this is the manufacturer's commitment to you. However, Grow Tents Depot would be happy to assist you in getting your product repaired or replaced by coordinating with the manufacturer.
  • If you would like us to assist with a warranty claim, please reach out to support with the following information:
  • Your order number.
  • Your shipping address.
  • A brief description of the issue.
  • Any photos or videos demonstrating the issue.

  • Customer Reviews

    Based on 32 reviews
    Arthur J.
    Heat mat

    Great hearing mat