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Vivosun 10"x20.75" Seedling Heat Mat w/ 6-Pack Seed Starter Trays

Official VIVOSUN Dealer Model: WEB-SST-H-0001
  • 10 inch by 20.75 inch footprint fits standard shelving units
  • Digital controller provides real-time internal temperature monitoring
  • IP67-rated waterproof mat surface allows for easy cleanup after water spills
  • 3-year limited warranty on electronics; 1-year on consumables
  • View More Details

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THROUGH THE Cultivator's LENS Hands-On Evaluation

  • You are starting seeds in a cold basement or near a drafty window because your previous attempts yielded leggy, stunted plants.
  • You are looking to standardize your early-stage growth environment because your current germination rates are unpredictable and slow.

  • The digital thermostat is the real value here because you can lock in an exact temperature instead of relying on ambient warmth.
  • The humidity domes are surprisingly sturdy, and the adjustable vents let you dial in moisture levels without lifting the lid.

  • Users who dealt with slow germination in cold rooms report that seedlings now sprout in half the time.
  • Gardeners with limited space appreciate how the trays stack together, which clears up their workbench during the off-season.

Vivosun 10"x20.75" Seedling Heat Mat w/ 6-Pack Seed Starter Trays

Cold windowsills and chilly basements slow germination, and seeds left too cool sprout unevenly or not at all. The Vivosun Seedling Combo solves both halves of the problem in one purchase. A 10″ × 20.75″ seedling heat mat with a digital thermostat delivers steady bottom heat, and a 72-cell seed starter kit with vented humidity domes holds moisture where seeds need it.

The heat mat uses far-infrared heating built into durable PVC and PET film designed to meet MET standards. Its IP67-rated waterproof surface wipes and scrubs clean. The self-adjusting dual digital display controller lets you set a target temperature for your crop. It reads an internal sensor chip and shows the pad's real-time temperature, so you can confirm conditions at a glance instead of guessing.

The seed starter kit includes six 12-cell trays, six base trays, and six clear humidity domes with adjustable vents for managing moisture and temperature during germination. Drain holes in every cell prevent overwatering, and the trays tolerate 0–120°F, so they won't melt on the mat. Sow directly into the cells or place six 30mm seedling blocks on each base tray. When seedlings are ready, they transplant easily into pots or garden beds, and the reusable trays nest for storage.

Features

🌡️
Digital Thermostat

Set your target temperature and see real-time pad readings on a dual display.

🔥
Far-Infrared Heat Mat

10″ × 20.75″ PVC and PET film mat delivers steady bottom heat.

💦
IP67 Waterproof Surface

Safe to scrub clean after spills, built to meet MET standards.

💨
Vented Humidity Domes

Six clear domes with adjustable vents hold moisture through germination.

🌱
72 Cells or Seedling Blocks

Sow into 12-cell trays or set six 30mm blocks on each base tray.

💧
Heat-Safe, Draining Trays

Trays tolerate 0–120°F and drain excess water to protect roots.

What's Included

  • 1x Seedling Heat Mat (10″ × 20.75″)
  • 1x Dual Digital Display Temperature Controller
  • 6x 12-Cell Seed Trays
  • 6x Base Trays
  • 6x Humidity Domes
  • 1x Garden Tool Kit
  • 10x Garden Labels

Specifications

Specification Value
Heat Mat Size 10″ × 20.75″
Heat Mat Material PVC and PET Film
Heating Technology Far-Infrared
Waterproof Rating IP67
Safety Standard Designed to Meet MET Standards
Temperature Controller Adjustable, Dual Digital Display
Temperature Sensing Internal Sensor Chip, Real-Time Readout
Seed Trays 6 × 12-Cell (72 Cells Total)
Seedling Block Capacity 6 × 30mm blocks per base tray
Humidity Domes Clear, with Adjustable Vent
Tray Drainage Drain Holes in Each Cell
Tray Temperature Tolerance 0–120°F

Frequently Asked Questions

How do I set the temperature on the heat mat? +

Use the digital controller to enter your target temperature based on what you're germinating. The controller reads the mat's internal sensor chip and shows the pad's real-time temperature alongside your setting, so you can confirm it's holding steady.

Will the seed trays melt on the heat mat? +

No. The seed starter trays tolerate temperatures from 0 to 120°F, so they hold up to continuous bottom heat without melting or warping.

Can I clean the heat mat if water spills on it? +

Yes. The heat mat has an IP67-rated waterproof surface that's safe to wipe and scrub. Regular cleaning helps keep it hygienic and working properly.

How should I use the vents on the humidity domes? +

Keep the vents closed to hold in moisture and warmth while seeds germinate. As seedlings emerge, open them gradually to release excess humidity and help seedlings adjust to drier air.

Can I use seedling blocks instead of starting mix? +

Yes. Sow directly into the 12-cell trays with your starting mix. Or remove the cell tray and place six 30mm seedling blocks, such as rooter plugs or compost pucks, on each base tray.

What can I grow with this combo? +

The kit handles a wide range of seeds, including strawberries, peppers, mint, and more. Bottom heat is especially helpful for warm-season crops that germinate slowly in cool rooms.

Are the trays reusable? +

Yes. The durable trays and domes can be cleaned and reused for multiple seasons, and they nest together for compact storage between plantings.

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Questions About This Product?

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Call (360) 800-5535

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