Horticulture Lighting Group HLG 300L R-Spec LED Grow Light

Horticulture Lighting GroupSKU: LED-HLG-300L-R

Sale price$379


Exclusive Limited Time Offer: GrowAce.com customers will receive a FREE pair of Yield Lab LED grow room glasses with the purchase of the Horticulture Lighting Group HLG 300L R-Spec LED Grow Light ($29.95 value!)

The HLG 300L Rspec LED can replace 600-watt HID to deliver superior yields. The grow system is equipped with HLG's exclusive 2 custom-designed full-spectrum quantum boards. These boards are embedded with Samsung LM301H LEDs, currently, the best available LED chips on the market and emits full-spectrum for overall plant nourishment. The deep red LED 660nm supports plants during its fruiting and flowering stage.

  • Noise-Free Heat Management: The heat emitted by the LEDs is dissipated from the system with the help of a heatsink that does its work noiselessly without the use of cooling fans.

  • Diffused Light: The LEDs spread evenly on the quantum board provides diffused light to the plants that do not leave burn spots on the plant and allows deeper canopy penetration.

  • Highly-Efficient:The LED can replace a single-ended 600 watt HID while just withdrawing 270-watts power.

  • 40% Higher Yields: The Samsung LM301B LED is the best high-intensity light available in the market that delivers full-spectrum light for superior quality output. You can expect 40% higher yields.

  • Dimmable: dimmable, with wattage output from 90 to 270 watts.
  • 3 Year Warranty: Industry-leading 3 year warranty included

The HLG 300L Rspec is a highly efficient LED grow system as it uses very little power to deliver with its high PPF efficacy of 2.6 μmol/joule. It can replace a 600-watt HID to provide superior quality yields. The system efficiency of the system is reported at 164 Lm/W, and the total output is 700 PPF.

The grow system has a dimming feature with which you can control the energy consumption of the fixture and save on power consumption bills. With the dimmer, you can easily use this light from seed to full harvest.

The dimensions of the fixture are 26" x 10" x 3", it is an average-sized so can easily mount it anywhere. The flowering footprint of the fixture is 2.5'x2.5' or 3'x3' when mounted at 18" height, and the vegetative footprint is 4' X 4' when mounted at 24" height.

The grow system has a passive heat management system that gets rid of the system heat without using active cooling fans. It uses heatsinks to maintain the ambient temperature of the cooling system. Even if you place the fixture indoors, it will work noiselessly without disturbing the surroundings. Due to the absence of cooling fans, the energy consumption is extremely low.

The materials of the grow system is anodized aluminum which will save it from corrosion.

The grow light system has two custom-designed quantum boards that are embedded with 660nm Deep Red and Samsung LM301H LEDs that encourage the process of photosynthesis in plants, allows deeper canopy penetration and supports plants' entire life cycle.


Power 90-270 Watts
Voltage Range 90-277 VAC
Flowering Footprint 2.5'x2.5' or 3'x3'
Veg Footprint 4'X4'
System Efficiency 164 Lm/W
System PPF Efficacy 2.6 μmol/joule
Total output 700 PPF
Dimensions 26" x 10" x 3"
Recommended Mounting Height 18-24 inches


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