Plant Germination Set, 20" x 20.5" Seedling Heat Mat With Thermostat Controller and Thermohygrometer, iPower Mother Earth This allows your plants to

This allows your plants to achieve a balance between respiration and photosynthesis in high intensity growing environments where the rate of respiration can sometimes exceed the rate of photosynthesis

Excellent for hydroponics

Sulfur 90% A specially prepared micronic sulfur suitable for use as a dust or spray

6 - 3 in Block (3 in x 3 in x 4 in) with Hole

Plant Germination Set, 20" x 20.5" Seedling Heat Mat With Thermostat Controller and Thermohygrometer, iPower Mother Earth This allows your plants to20 x 20 seedling heat mat& Control Feature? 1. 20 x 20 heat mat fits under one common seed flat. 2. Waterproof design allows you to scrub and easier cleaning. 3. Durable internal insulated wiring for enhanced safety. 4. Digital thermostat provides temperature control between 40? F 108? F (5 42? C), temperature display range: 32 140? F. 5. Digital thermostat Specs: 120 Volts 8. 3 Max Amps 60 HZ 1000 Watts. 6. Easy plug in operation with LED illuminated