The added bonus of bottom heat to jump start seed germination!
Designed to work with any 25 x 50 cm (10" x 20") seed starting tray. Supplies bottom heat to give a "jump start" to all your seed starting. Creates a warm environment to improve seed germination and encourage faster growth. Specifically designed to raise rooting area temperature to approximately 23 C (74 F). Place mat under the tray (not in it) and plug in a wall outlet, out of reach of children. UL approved, 17 watt, 120 volt.