Grower’s Choice ROI-E420


  •  Free shipping in the USA (lower 48 states)
  •  Ships 1-2 business days
  •  Ships discreetly



Introducing the ROI-E420 Horticulture LED System by Grower’s Choice. This high performance and cost-effective lighting solution for commercial and home horticulture is now available.

The ROI-E420 is controllable with the Grower’s Choice Master Controller and is compatible with all quality master controllers. Cultivators can set the fixture to turn on and off at desired times, program sunrise/sunset settings, program dimming options and set protective fail-safes to dim or turn off fixture in the event of excessive room temperatures, such as in the event of HVAC failure, potentially saving gardens from heat damage.


  • 420W power draw
  • 2.6 umol/j efficacy
  • 1090 umol/s total light output
  • Up to 4’x4′ (16 sq ft) coverage area
  • GC-3k Full Spectrum with 660nm deep red (Osram diodes)
  • Onboard dimming function 0-10v
  • Compatible with Grower’s Choice Master Lighting controller
  • Even light distribution
  • Fanless Design
  • IP65 Waterproof
  • UL8800, UL1598, DLC and CE certification
  • 5Year warranty 

Spec sheet




Optional Master Controller

Controller can be added above the ‘Add to Cart’ button on this page






Wattage draw at the wall: 420 watts

HPS equivalent: 800w

LEDs: Osram LEDs; 54,000-hour lifespan until L90

Spectrum: GC-3K Full Phase; Full spectrum with 660nm deep red

PPF (light output): 1090 umol/s

PPF/Watt: 2.6 umol/j

Beam angle: 120°

Coverage area:

  • Flower: 3′ x 3′ to 3.5′ x 3.5′
  • Veg: 4′ x 4′

Mounting height: 6″-24″ above canopy

Dimensions: 35.3” L x 34.6” W x 3.2” H

Cooling: Passive

Dimming: Dimmable on unit, more controllability with controller (not included)

Operating temperature: -20°C to +45°C

Operating/input voltage: 110-277v AC

Plug: NEMA 5-15P 120V plug, NEMA 6-15P 240V plug adapter included

Amperage: 120V: 4.0A / 208V: 2.5A / 240V: 2.0A / 277V: 1.8A

Product weight: 19.4 lbs

Additional details: IP65; UL8800, UL1598, DLC and CE certification

Recommended for: Home grows, Commercial grows, Grow rooms, Tents

Manufacturer’s Warranty: 5-years


There are no reviews yet.

Be the first to review “Grower’s Choice ROI-E420”

Your email address will not be published. Required fields are marked *