Seedling Heat Mat 50W with Thermostat (9.8" x 20.5")

Give your seeds the warm start they need. This 50W seedling heat mat with built-in thermostat delivers consistent bottom heat to supercharge germination rates and get your seedlings off to a strong start — even in a cold basement or garage.

The built-in NTC thermostat probe lets you dial in the exact temperature your seeds need, from 20–35°C (68–95°F), so you're never guessing. Quick-heating technology means your tray reaches the target temperature fast, and the Err protection function automatically shuts off the mat if the probe is misplaced — keeping things safe and your plants protected.

Great For

• Germinating vegetable, herb, and flower seeds
• Rooting cuttings and propagating houseplants
• Warming seedling trays in cool growing spaces
• Year-round indoor propagation

Features

• 50W with precise thermostat control (20–35°C / 68–95°F)
• Fits standard 1020 seed trays (25 x 52cm / 9.8" x 20.5")
• Durable, water-repellent PVC surface — easy to wipe clean
• 110V/220V compatible
• Automatic Err protection if probe is incorrectly positioned

Pro tip: Place the NTC probe flat under the center of the mat (not deep in soil) and set to around 35°C for most seeds. Your germination rates will thank you.