ThinkGrow Model W the HM trim tray is

the HM trim tray is made with quality materials and ingenuity

From the SPH-1 hub

Dosatron with integrated by-pass system for manual activation of the additive suction (on) and stop (off)

Deep Red and Far Red are fully controllable to customize your desired spectrum/recipe of light your plants need

ThinkGrow Model W the HM trim tray isThe Model W is a high performance LED grow light for horticulture cultivation. It is designed for high PPFD cultivation practices. Full spectrum design covers each critical phase of growth from vegetative to flowering. An independent Far Red 730nm channel is designed to target Phytochrome Far Red in photomorphogenic lighting applications. Base on research, introducing far red light after the lights have been turned off can lengthen the dark period to