Win a NextLight Mini Full-Spectrum LED grow light! Ends July 24th. Enter Now
LED Grow Lights Depot

       8am - 5pm PST Tues-Fri     Email Us     Main: 971.266.0352 Security Seals                                            0

 8am - 5pm PST Tues-Fri
 Email Us   Main: 971.266.0352

Ursa Helios GT 320W

  • Ursa Helios GT 320W


    We ship worldwide! Contact us for a quote.

   In Stock         Discrete Shipping
    Need several units? Inquire for a volume quote.

4x Buyer Protection

4x Buyer Protection

   No returns | 5-year warranty
   Authorized dealer of this product


Ursa LED’s flagship and patented Helios fixture is the ultimate in grow light technology!

Both component and fixture level optimization allows the Helios GT to produce intense PPFD output. Their patented, high-powered, single source LEDs allows for extreme penetration through the canopy.

By doing so, the plant receives an abundant amount of light in the lower parts of the canopy, allowing for increased yields and production.

Delivering a broadband red spectrum of 80 nanometers (620nm-700nm), combined with a 450nm royal blue, the Helios GT series is optimized with one condition in mindmaximum performance in a grow tent setting or grow room.

The high dispersion rate from the wide angle optical lens technology allows maximum PPFD output to reach lower levels of the canopy through reflection inside the grow tent.

With penetration reaching deep into the canopy, no light is wasted with the added advantage of higher absorption rate and growth rate from lower branches.



  • 1200 PPFD at 12” From Canopy
  • Broadband Red Spectrum of 80 nanometers (compared with 25nm industry standard)
  • Patented High Power Single Source LEDs from Flip Chip Opto
  • State-of-the-Art Phosphor Conversion Removes the Need for Inefficient Red LED Chips
  • Including UV-A and Far Red at the ends of the spectrum
  • Customizable Spectrum: Red/Blue or White Light (3000K, 4000K, 5000K)
  • Passively Cooled. No Moving Parts (Fans, Liquid Cooling)
  • Outperforms 600 Watt MH or HPS
  • Reduces Plant Stretching Up to 50% (increased yields)
  • IP-65 waterproof rated
  • 5-year manufacturer's warranty

Helios 320 Datasheet (PDF Download)

LED: Luna 300 - Flip Chip Opto COB
LED: Duet 300F - Flip Chip Opto COB


Spectrum Curves

Red/Blue Spectrum











Quality construction


Intense coverage





Model/SKU: Helios GT 320W/hgt320

Power output: 320 watts

MH/HPS equivalent: 600 watts

LEDs: 1 x 320 watt Flip Chip Opto COB Array; 50,000 hour lifespan

Spectrum: Red/Blue, 3000K, 4000K, or 5000K options available

Lens: 90 degree tempered glass

PAR: See PAR curve diagram below

Power Factor: 0.98 @ 115 VAC

Luminous Flux: 

  • 32778 lm @ CCT: 5000K, CRI: 70
  • 31794 lm @ CCT: 4000K, CRI: 70
  • 28844 lm @ CCT: 3000K, CRI: 80

      Light Efficacy:

      • 107.5 lm/W @ CCT: 5000K, CRI: 70
      • 104.3 lm/W @ CCT: 4000K, CRI: 70
      • 94.6 lm/W @ CCT: 3000K, CRI: 80

      Coverage area: 36" x 36" (9 sq ft)

      Thermal management: Passive cooling via a patented Cold-Forged Finned Heatsink

      Dimensions: 12.5" x 11.8" x 17.8"

      Operating temperature: -40˚C to 60˚C (-40˚F to 140˚F)

      Input voltage: 90-305 VAC; 6.7 A

      Operating current: 50-60Hz

      Product weight: 14.4 lbs

      Recommended height above plants: 16"

      Additional details: IP-65 rated

      Recommended for: Small to medium-sized grow operations; Indoors only

      Manufacturer's warranty: 5-year standard


      PPFD Curve


      Lux Distance Curve


      Light Distribution Curve


      Customer Reviews

      No reviews yet

      Ursa Ursa Helios GT 320W Product #: 8004830278 Regular price: $660.00 $$660.00 Available from: Ursa New In stock
         No returns | 5-year warranty

         Authorized dealer of this product

      Commericial Grow? You may be eligible for a huge energy rebate. Contact us to learn more.