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VIVOSUN 48" x 20.75" Seedling Heat Mat w/ Dual Digital Thermostat - 2 Pack

Official VIVOSUN Dealer Model: WEB-330303x2
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Amount:$500 to $10,000
  • Two 48" x 20.75" mats provide combined coverage for at least four standard seedling trays
  • Far-infrared technology provides even heat distribution without creating dangerous root scorch
  • Dual digital display shows both the target temperature and the current probe reading simultaneously
  • 1-year after-sale service, including a free return within 30 days of delivery
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THROUGH THE Cultivator's LENS Hands-On Evaluation

Who This Is For

  • You are upgrading to a large mat setup because smaller pads create cold gaps between your seedling trays.
  • You are adding thermostat-controlled heating because ambient floor temps are stalling your germination rates.
  • You are consolidating your propagation area because managing individual controllers for every tray is a mess.

What We Found

  • We noticed the dual display is actually readable from across the room, which saves you a walk to the controller.
  • These mats are thicker than the cheap rolls, so they stay flat on the bench instead of curling at the corners.

What Users Say

  • Commercial growers who switched to these say they stopped losing cuttings to root rot caused by uneven cold spots.
  • Buyers using these in high-humidity tents report the IP67 seal handles heavy misting without any electrical shorts.

VIVOSUN 48" x 20.75" Seedling Heat Mat w/ Dual Digital Thermostat - 2 Pack

Struggling to maintain consistent, optimal temperatures for large-scale seed starting and propagation? The VIVOSUN 48" x 20.75" Seedling Heat Mat 2-Pack is the professional-grade solution designed to eliminate guesswork and accelerate germination. This system combines advanced far-infrared heating with a precise dual-display thermostat, creating the perfect foundation for healthy, vigorous seedlings and clones. It's an essential tool for commercial growers and serious home gardeners looking to maximize success rates across multiple seedling trays, and a core component of the VIVOSUN ecosystem of garden tech.

Engineered for performance, the mat's far-infrared technology provides exceptionally even heat distribution across the entire 48" x 20.75" surface, warming the root zone to your target temperature in minutes without creating dangerous hot spots. The intelligent dual-display thermostat is a game-changer, allowing you to see your set temperature and the real-time probe temperature simultaneously for complete control. Built from durable, IP67 waterproof PVC and PET film, this mat is designed for the humid environment of a greenhouse or grow tent, making cleanup simple and safe. This pack provides everything you need to manage the critical early stages of growth for a large number of plants, making it a vital piece of propagation equipment.

What's Included

  • 2 x VIVOSUN 48" x 20.75" Seedling Heat Mats
  • 2 x Dual Digital Display Thermostat Controllers

Features

📏
Expansive Coverage

Large 48" x 20.75" surface fits multiple standard seedling trays for large-scale operations.

🌡️
Dual Digital Display

Simultaneously monitor set temperature and real-time probe readings for precise control.

🔥
Far-Infrared Heating

Ensures rapid, uniform heat distribution across the entire mat without scorching roots.

💧
IP67 Waterproof

MET-certified construction is safe for humid greenhouse use and allows for easy cleaning.

🛡️
Overheat Protection

Built-in safety feature automatically shuts the unit off if temperatures exceed safe limits.

💪
Durable & Flexible

Made with rugged PVC and PET film that can be easily rolled or folded for compact storage.

Specifications

Specification Value
Dimensions 48" x 20.75" (per mat)
Quantity 2 Mats, 2 Thermostats
Heating Technology Far-Infrared
Max Temperature 122°F (50°C)
Waterproof Rating IP67 (Mat Surface Only)
Material PVC and PET Film
Safety Certifications MET Standards, Overheating Protection
Input Voltage 120V

Warranty

This product is covered by a 1-year after-sale service, including a free return within 30 days of delivery. Your investment is protected with comprehensive warranty coverage and dedicated customer support.

FAQs

How many standard seedling trays can fit on one mat?+

Each 48" x 20.75" mat can comfortably fit four standard 10" x 20" (1020) seedling trays side-by-side, making this 2-pack ideal for starting up to eight trays at once.

How does the dual digital display work?+

The controller has two readings on its screen. One shows the target temperature that you have set using the buttons. The other shows the current, real-time temperature being read by the probe. This allows you to confirm at a glance that your mat is maintaining the correct temperature for optimal germination.

Is this heat mat safe to use in a wet greenhouse or grow tent?+

Absolutely. The mat itself has an IP67 waterproof rating, meaning it's protected against splashes, spills, and humidity. You can safely wipe it clean. However, the thermostat controller and electrical plug are not waterproof and should always be kept dry.

What makes far-infrared heating better than older designs?+

Far-infrared technology heats objects directly and evenly, much like the sun. Unlike older resistance-wire mats that can create hot and cold spots, far-infrared provides uniform warmth across the entire surface. This consistency is crucial for preventing root damage and ensuring all your seedlings germinate at the same rate.

What is the best temperature for starting seeds?+

The ideal temperature varies by plant species, but most seeds germinate best in a range of 70-85°F (21-29°C). The precise digital thermostat included with this mat allows you to dial in the exact temperature your plants need. For more detailed information, consult our guide on grow room temperature and humidity.

Can I use this for anything other than seedlings?+

Yes. These mats are excellent for propagating clones, brewing kombucha, fermenting, and any other hobby that requires consistent, gentle, low-level heat. Their large size and precise control make them incredibly versatile.

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Questions About This Product?

Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)

Call (360) 800-5535

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