HLG 750 Diablo - Premium Horticultural Lighting for growth and flowering

Your questions about this product

• HLG 750 Diablo, with its 4 quantum boards and passive cooling, how does it optimize thermal management during long cultivation sessions in a non-ventilated environment?
  The HLG 750 Diablo optimizes thermal management in a non-ventilated environment thanks to its passive cooling system which keeps the temperature around 25°C, its high energy efficiency (2.86 µmol/J) that limits heat production, and an adjustable power supply allowing the adaptation of power according to the cultivation needs. However, even with these features, minimal ventilation is still recommended to ensure good air circulation and prevent condensation or thermal stress on the plants.
• Does the HLG 750 Diablo offer a dimmer function that allows easy adjustment of light intensity according to the different growth and flowering phases of plants?
  Yes, the HLG 750 Diablo integrates a dimmer function that allows easy adjustment of light intensity according to the growth and flowering phases. You can manually adjust the power or use the RJ ports for 0-10V control, offering great precision to adapt the light to the plants' needs throughout their cycle. For even more flexibility, a wireless control option with the GrowFlux module (optional) is available. This is a valuable asset for efficiently managing your horticultural LED lighting.
• Can the HLG 750 Diablo be effective in a SCROG setup with low canopy levels requiring optimal light penetration over 1.5 m²?
  The HLG 750 Diablo is perfectly suited for a SCROG setup over 1.5 m² with a low canopy. Thanks to its integrated reflectors and high intensity (more than 2000 PPF with a photon efficiency of 2.86 µmol/J), it ensures optimal light penetration down to the lower layers of the plants. Its balanced spectrum, combined with a dimmable power supply, allows for precise light adjustments to optimize growth and flowering in this environment.
• What is the average durability of Diablo Quantum Boards in intensive growing conditions?
  The Diablo Quantum Boards of the HLG 750 Diablo have an average durability of at least 5 years in intensive growing conditions. This longevity is ensured by a very effective passive design that limits heat, the main enemy of electronic components. Thus, even under intensive and prolonged use, these Quantum Boards maintain exceptional performance over several years, making them a reliable and durable choice for demanding indoor LED cultivation.
• What is the ideal procedure to adjust the integrated dimmer of the HLG 750 Diablo to optimize differential management between growth and flowering phases without compromising light coverage?

  To optimize the use of the integrated dimmer of the HLG 750 Diablo between the growth and flowering phases without compromising coverage, here is the ideal procedure:

  Growth phase: Reduce light intensity via the dimmer to promote healthy vegetative growth while maintaining even distribution over an area of about 1.5 m².

  Flowering phase: Gradually increase intensity to provide powerful lighting suitable for flower production, without overloading the plants.

  Key tip: Regularly monitor plant responses and finely adjust the dimmer according to their specific needs to ensure optimal light coverage and balanced development.

  The HLG 750 Diablo, with its 1152 LEDs and excellent photon efficiency (2.86 µmol/J), offers you all the flexibility needed to manage these settings with ease.

• Does the integrated dimmer really last over time without loss of adjustability or noise interference?

  The HLG 750 Diablo is equipped with an integrated dimmer that works perfectly right from delivery and allows for precise control of the lighting. However, the official documentation does not explicitly detail the durability of the dimming system or the absence of noise interference or loss of adjustability over the long term.

  The 5-year warranty covers the product as a whole, which includes any potential malfunction, dimmer included. In other words, this system is designed to be reliable, but no specific data supports its perfect longevity without any alteration.

  If total control of dimming over the long term is a critical criterion, we can also recommend other lighting solutions that offer robust and recognized brightness control.

• What is the real yield per watt for the HLG 750 Diablo in dense cultivation? Average PPFD at 30cm? Impact of dimmer on efficiency µmol/J measured?

  The HLG 750 Diablo displays an excellent real yield of about 2.86 µmol/J in dense cultivation, placing it among the high-performance LED solutions for growth and flowering.

  Regarding the average PPFD at 30 cm, the specifications provide an optimal footprint for a canopy height between 38 and 61 cm; at 30 cm, one can expect a higher PPFD, but without a precise measurement provided, it is difficult to indicate the exact value.

  Finally, the integrated dimmer allows for intensity adjustment without major loss of efficiency, but the precise impact on yield in µmol/J has not been officially quantified. In practice, the lamp maintains very good efficiency even when dimmed.

• Do HLG 750 Diablo grow better in hydroponics or soil with a full growth and flowering cycle?

  The HLG 750 Diablo is perfectly suited for a complete growth and flowering cycle, whether in hydroponics or soil. Its balanced light spectrum, designed for all stages of development, delivers high and consistent intensity, ideal for stimulating plants in both types of substrates. Its design with integrated reflectors optimizes light diffusion, ensuring excellent yield regardless of your cultivation method.

• Does the HLG 750 Diablo run significantly cooler than other 750W LEDs with active cooling to limit heat under the canopy while maximizing yield?

  The HLG 750 Diablo uses a passive cooling system, without fans, which reduces noise and potentially limits the heat under the canopy compared to certain models equipped with active cooling. This design promotes quieter operation and can help minimize local overheating, especially in well-ventilated spaces.

  However, in hot environments, passive cooling is sometimes less effective than an active system. To optimize its performance and keep heat under control, it is recommended to maintain ambient temperatures between 25°C and 29°C.

  Finally, with a photon efficiency of 2.86 to 2.88 μmol/J, the HLG 750 Diablo provides excellent light output while managing heat effectively. It is a premium choice for combining power and thermal management in indoor cultivation.

• Is passive thermal dissipation sufficient to limit the internal temperature in a closed grow tent without additional fan?

  The passive thermal dissipation of the HLG 750 Diablo is very effective at keeping its internal components at a low temperature due to natural convection. However, in a closed grow tent without ventilation, this dissipation alone may not be enough to limit the overall temperature.

  To ensure an optimal environment, especially during periods of high light and growth, it is recommended to add a ventilation system. A fan provides essential air circulation to dissipate accumulated heat and maintain the health of your plants.

• Does the integrated dimmer really last over time without loss of functionality after several years of intensive use?

  The HLG 750 Diablo is equipped with a very reliable integrated dimmer, designed for intensive use over several years without loss of functionality. The 5-year warranty provided by the manufacturer is a testament to the robustness and quality of this dimmable power supply. User feedback is generally very positive, with remarkable durability of the system, even under demanding conditions. Its passive cooled design also helps preserve the electronic components, including the dimmer, thus ensuring stability over time.

• With a PPF output of 2056 umol/s and a maximum consumption of 715 W, the HLG 750 Diablo displays a photon efficacy of 2.88 umol/J. Is this value measured at full power operation or dimmed, and what is the trend of photon efficacy over the integrated dimming range?
  The HLG 750 Diablo displays a photon efficacy of 2.88 µmol/J measured at full power operation, meaning at full power without dimming.
• How to optimize the height of the HLG 750 Diablo for maximum yield without risking burn on the canopy?

  To optimize the hanging distance of the HLG 750 Diablo and maximize yield without burning risk, it is essential to adjust the height according to the growth phase:

  • Blooming: hang between 38 and 61 cm (15-24 inches) above the canopy to ensure intense and even light without stress for the plants.
  • Vegetation: aim for a height of about 91 cm (36 inches) for wider and gentler diffusion, preserving the fragile young leaves.

  With its Quantum Boards with reflectors and dimmable technology, the HLG 750 Diablo also allows you to adjust the light intensity to meet your plants' needs, further limiting the risk of burning when the light is too close.

• Does the integrated dimmer allow precise adjustment of light intensity to optimize growth without the risk of overheating in small enclosed spaces?

  The HLG 750 Diablo features a precise dimmer that allows you to finely tune the light intensity according to your plants' needs, ideal for every stage of growth and flowering. Thanks to its passive-cooled design, this panel effectively limits overheating, making it perfectly suitable for small enclosed spaces like grow tents. This precise adjustment optimizes growth while maintaining a stable temperature, ensuring an ideal environment for your indoor crops.

• What is the recommended actual coverage in bloom in a 90x90 box with this HLG 750 Diablo to avoid shadow areas?
  For a 90x90 cm box, the HLG 750 Diablo provides uniform coverage in flowering provided that the light intensity is properly adjusted via its built-in dimmer. Positioned approximately 38-60 cm above the canopy, simply slightly reduce the maximum power to avoid shadow areas and not overexpose your plants. Thanks to its four Quantum Boards with reflectors, the distribution is excellent, ensuring dense and uniform lighting across the entire surface.
• What is the specific profile of the light spectrum (nm and white-red ratio) and its impact measured in PPF on growth versus flowering with the dimmer at 50 versus 100 to optimize yield and consumption g per watt for a space of 1.5m2?

  The HLG 750 Diablo offers a full spectrum white light with a Red:Green:Blue ratio of 37:42:21 %, combining a rich green and blue white with deep reds. This spectrum is ideal for ensuring vigorous vegetative growth and optimal flowering.

  At full power (100 %), it delivers a PPF of around 2056 to 2089 µmol/s with a remarkable photon efficacy of 2.86 to 2.88 µmol/J. The consumption then reaches around 715-730 W.

  The integrated dimmer allows a reduction to 50 % power (around 360 W), which proportionally reduces the PPF while maintaining perfectly adapted lighting for the growth phase where less intensity is needed. This modulation optimizes the consumption/yield ratio (g/W).

  For your space of 1.5 m², it is advised to use the setting at 50 % during growth to limit energy costs, then switch to 100 % during flowering to maximize production while benefiting from the maximum PPF and a full spectrum.

  This dimmable approach ensures an excellent compromise between energy efficiency and performance, optimizing yield in grams per watt according to the cultivation phase.

• What is the difference in electrical consumption and light output between the HLG 750 Diablo and a standard 1000-watt HPS LED panel for a 1.5m² surface in hydroponic cultivation?

  For a hydroponic surface of 1.5 m², the HLG 750 Diablo consumes approximately 715 watts at full power, compared to 1000 watts for a standard 1000 W HPS panel, resulting in a reduction in consumption of about 30 to 40%.

  In terms of light output, the HLG 750 Diablo provides a photosynthetic photon flux (PPF) of approximately 2080 µmol/s with a photon efficiency close to 2.86-2.88 µmol/J. In contrast, a 1000 W HPS panel typically produces a lower flux (around 1500-1700 µmol/s) with an efficiency of only 1.5 to 1.7 µmol/J, making it almost twice less efficient.

  In summary, the HLG 750 Diablo offers better light output for lower electrical consumption, with a spectrum better suited for growth and flowering in hydroponics while generating less heat.

• What is the average lifespan of the LEDs in the HLG 750 Diablo before a significant decrease in brightness, especially with continuous use over a full growth cycle?
  The average lifespan of the LEDs in the HLG 750 Diablo is approximately 50,000 to 60,000 hours before a notable decrease in brightness (around -20%). Thanks to its advanced Diablo Quantum Boards® and an efficient passive cooling system, these LEDs provide stable performance even with continuous use over complete growth cycles. According to a typical cycle (18h/day in growth, 12h/day in flowering), this corresponds to several years of regular use — often between 3 and 5 years — before any significant loss of luminous power. The 5-year warranty also reflects the reliability and durability of this panel.
• Does the included dimmer allow for sufficient intensity variation to optimize each stage of the growth cycle?

  The HLG 750 Diablo is equipped with a built-in dimmer that offers fine and precise control over light intensity. This adjustment allows for perfect adaptation of the panel's power to the different phases of the growth cycle: a gentler intensity for vegetation, promoting balanced growth over approximately 1.5 m², followed by a gradual increase for flowering to maximize flower development.

  Thanks to this flexibility, you can easily manage light according to your plants' specific needs, with a wide enough variation to optimize each stage of the cycle without compromising on quality or light coverage.