The HLG 300 V2 Rspec by Horticulture Lighting Group (HLG) is a renowned Quantum Board-style LED grow light that became a benchmark in hobbyist indoor horticulture. Designed to replace traditional 600 W HID setups, this fixture uses high-efficiency Samsung LM301H and deep-red 660 nm LEDs, delivering exceptional performance and excellent spectrum quality while running at much lower power. Constructed with passive cooling and a solid, lengthened board design, the 300 V2 Rspec ensures even light distribution, superior canopy penetration, and whisper-quiet operation. Constructed with passive cooling and a solid, lengthened board design, the 300 V2 Rspec ensures even light distribution, superior canopy penetration, and whisper-quiet operation. It delivers roughly 679 PPF and achieves an impressive system efficacy of about 2.7 μmol/J, representing a high-efficiency light output per watt. But if you’re thinking about another more powerful or a different lighting system, then check out the HLG 650R or even the HLG Scorpion Diablo V2.
