LUMii Black2 720w/960w LED Grow Light


Size: 720w (1 x ballast)
Sale price£324.99

An Incredibly Versatile LED Grow Light with a Fantastic Output

This LED grow light fixture boasts an impressive operating efficacy of approximately 2.9 µmol/J, utilising LED chips with individual efficacies ranging from 3.4 to 3.7 µmol/J. It delivers a maximum PPF output of 2596 µmol/s at 960 W, powered by two ballasts each drawing 480 W. In comparison, a 1000W HPS lamp (drawing 1070 watts) typically produces a PPF output of 1550 µmol/s.

This versatile, high-performance, mid-range LUMii Black2 LED fixture is both lightweight and easy to install, thanks to the absence of an integral driver. The fixture consists of two interlocking halves, each with its own power input socket, and can be configured as either a single interlocked 6-bar fixture or two separate 3-bar fixtures. The 6-bar setup is ideal for covering a growing area of 1.5m x 1.5m, while the two 3-bar fixtures can extend coverage by up to 25%.

How The LUMii Black2 720w/960w LED Grow Light Works

Both configurations can be powered by a single LUMii BLACK 600W Electronic Ballast using the included splitter lead. Alternatively, each half can be powered by its own ballast, increasing the maximum light output by at least 25%. A single ballast can be mounted on the 6-bar fixture using the provided brackets, but if using the 3-bar configuration or two ballasts, they must be positioned remotely. The fixture's open construction and low heat output facilitate airflow and heat management.

Producing full-spectrum light ideal for both growth and bloom, the LUMii BLACK² 720/960 LED ensures impressive results.


  • Powered by the LUMii BLACK Electronic Ballast 
  • Very versatile – suits many growing applications 
  • Coverage area minimum 1.5m x 1.5m, can be increased by up to 25%  
  • Light output PPF: 
  • 1 ballast – 2071 µmol/s 
  • 2 ballasts – 2596 µmol/s 
  • Full spectrum light 
  • High efficiency 
  • Excellent heat management 
  • Lightweight 

How To Use

For the best results, use the 6-bar fixture for a 1.5m to 1.5m square grow tent or the dual 3-bar fixture can cover a grow area up to 25% larger.

Hang the unit in your grow tent above the plant canopy using the eyelets on the fixture. It is usually best to start off higher up and on lower settings, lowering it as your plants adapt. This avoids the possibility of causing any plant stress.

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