LUMII BLACK 720W/960W LED

Description

LUMII BLACK 720W/960W LED is a premium full-spectrum LED grow light built for serious UK cultivators who demand professional yields without the running costs of traditional HPS. We have been recommending the LUMII BLACK LED range to our customers since 2017, and this dual-power model remains one of the most versatile fixtures on the market for both vegetative and flowering cycles.

Full-Spectrum Performance at Two Power Settings

The LUMII BLACK 720W/960W LED gives you the flexibility to switch between 720W for vegetative growth and 960W for the flowering stage, letting you optimise energy consumption throughout your grow cycle. The full-spectrum output closely mimics natural sunlight, delivering the red and blue wavelengths plants need for photosynthesis along with far-red and IR spectra that promote faster cell expansion and earlier flowering onset. PPFD outputs are engineered for dense canopy penetration, making this light equally effective in 1.2m x 1.2m tents or larger 1.5m x 1.5m spaces.

Passive and active cooling systems are integrated into the unit, keeping diode temperatures low and extending the lifespan of the LEDs well beyond comparable HPS or CMH alternatives. The driver is built-in and operates quietly, which is a significant advantage in residential grow spaces where noise management matters.

Running Costs, Coverage and Compatibility

One of the primary reasons UK growers switch to the LUMII BLACK LED is the reduction in electricity costs. Running at 720W or 960W rather than the 1000W+ draw of equivalent HPS setups, combined with minimal heat output, reduces both your electricity bill and your need for aggressive extraction. Many growers find they can reduce fan speeds and lower noise levels significantly when switching to this fixture.

This light integrates seamlessly with standard LUMII timers and environmental controllers. For best results, pair it with a quality carbon filter and inline fan rated for your tent size. During the vegetative stage, run at 720W with an 18/6 photoperiod; switch to 960W when flipping to 12/12 for flowering to maximise bud density and resin development.

Compatible with soil, coco, and hydroponic systems, the LUMII BLACK 720W/960W LED suits a wide range of growing styles. Whether you are running a DWC recirculating system or pots of coco coir, the consistent, even light distribution promotes uniform growth across your entire canopy. Combine with LUMII’s own nutrient and environmental control range for a fully integrated growing system.