* Warms root area approximately 10° - 20° F over ambient temperature to improve germination process.
* Helps gardeners have better success rates with seedlings & cuttings.
* Perfect for one standard 10" x 20" propagation tray.
* Heavy-duty construction makes this mat very durable.
* More than 20% larger than competitive mats. This allows even warming of your entire tray.
* More consistent heating with fewer hot spots than other seedling heat mats.
* Ed Hume seal of approval.
* Dimensions: 21" x 10"
* 20 watts