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LUMii Black² 720/960 LED Grow Light delivers 2596 µmol/s PPF at 2.9 µmol/W efficacy. This full-spectrum modular LED with LUMii Black 600W Digital Ballast is ideal for hydroponics and indoor gardening, covering up to 1.5 m x 1.5 m. High-performance, low-heat, UK-spec for maximum crop yield.
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Engineered for exceptional performance, the LUMii Black² 720/960 LED Grow Light is the ultimate full-spectrum LED grow light solution for serious UK indoor gardening and hydroponics. This high-efficiency, modular 6-bar fixture is supplied complete with the powerful LUMii Black 600W Digital Ballast, offering maximum flexibility and outstanding light output up to an impressive 2596 µmol/s PPF. Designed to dramatically reduce your running costs while optimising your crop yield, the fixture boasts an outstanding efficacy of 2.9 µmol/J. Its lightweight, open design ensures superior heat management and easy installation, making it perfect for grow rooms and tents up to 1.5 m x 1.5 m or larger when split. This professional-grade lighting system delivers the quality light your plants need from propagation right through to bloom.
Key Benefits of the LUMii Black² 720/960 LED
- Ultra High Efficiency: Achieve an exceptional operating efficacy of 2.9 µmol/W, translating to lower electricity consumption compared to traditional 1000W HPS systems.
- Maximum Light Output: Capable of delivering up to 2596 µmol/s PPF when running at 960W with two ballasts, or 2071 µmol/s PPF with the single supplied LUMii Black 600W Digital Ballast (720W mode).
- Versatile and Modular Design: The fixture splits into two 3-bar halves, allowing for flexible setup in different grow spaces or to cover a larger area than the standard 1.5 m x 1.5 m footprint.
- Full Spectrum Lighting: The light source includes full-spectrum chips plus 660 nm deep red chips, providing the ideal light quality for all stages of plant growth and flowering.
- Excellent Heat Management: The open, lightweight construction and remote driver capability significantly assist with airflow and maintaining optimal growing temperatures within your grow space.
How to setup the LUMii Black² 720/960 LED
- Assembly: The fixture can be assembled as a single 6-bar unit (ideal for 1.5m x 1.5m spaces) or split into two 3-bar units for increased coverage versatility.
- Powering: The system is powered by the LUMii Black 600W Electronic Ballast (included). Use the provided splitter lead to power the 6-bar fixture with the single ballast (720W maximum output). For the maximum 960W output, a second ballast (sold separately) is required.
- Ballast Placement: The single ballast can be mounted directly onto the 6-bar fixture using the supplied brackets. Alternatively, for improved heat management in the grow space, the ballast can be positioned remotely (up to 10m away) using a LUMii Extension/Link Lead (sold separately).
- Hanging Height: Hang the fixture adjustably using Rope Ratchets (sold separately). The recommended hanging height is typically 30-50 cm above the plant canopy. Adjust the height or use the dimmable settings on the ballast (250W, 400W, 600W, and 600W Boost) if your plants show signs of stress from light intensity.
Frequently Asked Questions
Is it better to use one or two ballasts for this LED fixture?
This depends on your light requirements. Using one LUMii Black 600W Ballast (720W max) gives you access to all dimmable settings (250W, 400W, 600W, and 600W Boost), offering greater control over light intensity. Using two ballasts (960W max) provides a significantly higher light output (up to 2596 µmol/s PPF) but restricts your dimming options. For maximum versatility, two ballasts are recommended.At what height should I hang my LUMii Black² 720/960 LED?
The fixture should typically be hung adjustably at around 30-50 cm above the plant canopy. You should monitor your plants for any signs of stress. If the light intensity appears too strong, you should raise the fixture or select a lower power setting on the digital ballast.Why should I choose this LED lighting rather than traditional HID lighting?
LED fixtures like the LUMii Black² offer a much higher power consumed-to-light output ratio (efficacy), resulting in lower running costs. They also produce significantly less heat, making heat management in the grow room simpler. Additionally, the full-spectrum output is superior for covering both vegetative and flowering stages effectively, and the fixture gives a more uniform spread of light across the canopy.Can I hang the LUMii Black² 720/960 LED as a 6-bar fixture, or as two 3-bar fixtures?
Yes, the fixture is modular. For a standard 1.5 m x 1.5 m grow tent, the 6-bar configuration is best. For a larger grow space or to create a more dispersed light array, you can separate it into two 3-bar fixtures, which can cover a growing area up to 25% larger than the interlocked configuration.SKU: 1811 LUMii Black² 720/960 LED Grow Light
Light Source: Full Spectrum plus 660 nm chips
Light Output (Max PPF): 2596 µmol/s (with two ballasts at 960 W)
Light Output (Single Ballast): 2071 µmol/s (at 720 W)
Optimum Efficacy (PPE): 2.9 µmol/W
Lifetime: L90: >50,000 hr
IP Rating: IP65 (protected from low-pressure jets of water)
Weight (LED fixture only): 7.8 kg
Overall Size (6-Bar Fixture): 110 cm x 108 cm x 5 cm
Maximum Total Power: 960 W (with two ballasts) / 720 W (with one ballast)
AC Input Voltage: 220 V – 240 V (to ballast from mains)Free delivery on orders over £60*
- UK Mainland onlyStandard Delivery £4.95
- Heavy / Large item surcharge £2 per item
- 1-3 Days**
- UK Mainland onlyExpress Delivery £8.95*
- Next Working Day**
- UK Mainland onlyScottish Highlands £15.95*
- 2-5 Days***Can not be used with Heavy / Large items
**If ordered on a working day before 2pm cut off (Saturday and Sunday are not classed as working days).Please See Delivery and Returns page for more details.
