Growers Choice Master Lighting Controller HPS & MH Grow Light Bulbs Features one-touch automatic calibration with

Features one-touch automatic calibration with included buffer powder packs for easy setup

This ensures a clean work space and the option for further processing and profit

Liquid quality requirements: clean

The active carbon insert is proven to keep most bugs and pollutants from entering grow room

HP3 - High Performance 3

Growers Choice Master Lighting Controller HPS & MH Grow Light Bulbs Features one-touch automatic calibration withGrowers Choice digital lighting controller enables the grower to control up to 200 fixtures. It is compatible with all GC 315 CMH, GC 630NS CMH and GC 1000 DE fixtures. This dual channel controller allows daisy chaining up to 100 fixtures per zone. En abling complete control of your growing environment with timed on off switching, sunrise sunset, and precise temperature readings with dual thermal probes and thermal threshold auto dim shutdown for