Hydrofarm Digital Heat Mat Thermostat Ballast The Black Box is a

The Black Box is a sealed indoor growing space for starting new plants from seeds or cuttings without the need for an exterior greenhouse

aluminum top and bottom

Can be used with any branded fertilizer schedule and even on top of most additive schedules

Does not significantly add to EC levels unlike most P-K products

Adonis Living Soil a certified organic soil that is designed by professional growers

Hydrofarm Digital Heat Mat Thermostat Ballast The Black Box is aWater resistant stainless steel temperature probe Digital temperature control Controls temperature in colder or warmer environments from 68 to 108 degrees Fahrenheit Celsius or Fahrenheit read out