Growers Choice TSL LED ROI-E420 - Horticulture Lighting Fixture - 420W Fast Fit 1598 PPFD Peak: Concentrates a

1598 PPFD Peak: Concentrates a 1598 µmol/m²/s PPFD peak with a uniform PAR map for even canopy development

58% runs drier and protects long holds and denser material

Regular Use: Use a dilute mixture of 2-5 mL per gallon of water for regular maintenance

TDS reads 0 to 3000 ppm on a 0

this monitor was designed with Hydroponics

Growers Choice TSL LED ROI-E420 - Horticulture Lighting Fixture - 420W Fast Fit 1598 PPFD Peak: Concentrates aGrowers Choice ROI E420 LED with 1,090 mol s and GC 3K Spectrum The Growers Choice ROI E420 outputs 1,090 mol s PPF at 2. 6 mol J efficacy from 420W on 120 277V AC. Built as a collaboration between TSL Horti Tech and Growers Choice, this fixture uses Osram top bin diodes tuned to the GC 3K full phase spectrum (3000 3300K) with enhanced 660nm red. The overall color temperature sits in the warm range that favors flowering, but the balanced spectral