Horticulture Lighting Group HLG 350R Full-Spectrum LED


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ThHLG 350R Commercial Indoor Horticulture LED grow light is designed to replace a 600 watt HID with just 330 Watts.

Each HLG 350R uses (2) HLG custom-designed, full-spectrum, high-efficiency Diablo™ quantum boards with Samsung LM301H and LM351H Deep Red diodes.

With a rectangular footprint, this fixture is ideal for flowering in smaller grow spaces or vegging in a commercial grow.

Updated Aug 1, 2021: 1011 umol/s and  3.11 umol/J.


Top Features

  • 35″ wide design for even light coverage
  • 3.11 PPF/W
  • 1011 PPF high output to replace even 600W HPS
  • Powered with high-efficiency Samsung Diablo™ QB648 Quantum Boards®
  • Full spectrum white and 660nm red
  • Reliable passive-cooled design
  • Better canopy light penetration with diffused light
  • 60 to 330 Watts Dimmable design
  • Auto-sensing Inventronics power supply works on both 120VAC and 240VAC and 277VAC
  • 3 Year Warranty





(These are PAR maps from the previous version of the HLG 350R. The light output has been increased to 1011 umol/s (5% increase) in this new version.)

15″ height, 6″ square grid

 24″ height, 6″ square grid

GrowFlux Controller Information

 More information





Wattage draw: 330 watts (down to 60 watts)

HID equivalent: 600W HID replacement

LEDs: Samsung LM301H & LM351H Deep Red

PPF: 1011 umol/s

PAR efficacy: 3.11 umol/j

Coverage area:

  • Veg: 5′ x 5′ at 24”
  • Flower: 3′ x 5′ at 15″

Mounting height: 15″ – 24″ above canopy

Thermal management: Passive cooling

Dimensions: 34.5″ x 10″ x 2.75″

Operating/input voltage: 100-277 VAC 50-60Hz

Amperage: 2.91A @ 120V

BTUs: 1126

Certifications: UL 8800, UL 1598

Product includes:

  • Fixture with NEMA 5-15P plug/cord and plug
  • Dimmable Inventronics driver
  • Hangers

Recommended for:

  • Grow tents
  • Grow rooms
  • Large indoor grows
  • Vegetative growth and/or flowering
  • Full-cycle growing from seedling to flower
  • Soil, hydroponic, aeroponic, or aquaponic systems

Manufacturer’s warranty: 3-years


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