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Vivosun LumaLight 750W Full Spectrum LED Grow Light

Official VIVOSUN Dealer Model: VSL-LLB750
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  • Provides 900 µmol/m²/s at 12 inches across a full 5x5 ft canopy footprint
  • Micro-Lens Optic System boosts PPFD by 20 percent compared to flat designs
  • IP65-rated sealed bars protect against dust and moisture in high-humidity rooms
  • View More Details

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THROUGH THE Cultivator's LENS Hands-On Evaluation

Who This Is For

  • You are scaling up to a 5x5 footprint because your current light leaves the outer edges of the canopy thin and weak.
  • You are adding lens-focused optics because standard flat LEDs fail to push enough light to your lower harvest sites.

What We Found

  • The curved lenses actually work to punch through the top leaves without needing to hang the bars dangerously low.
  • We noticed the integrated fins stay cooler than flat-back bars, which helps prevent heat from building up in the tent.

What Users Say

  • Users say the light spread is so even they no longer have to rotate pots to ensure every plant develops at the same rate.
  • Growers who added the GrowHub report that automated dimming schedules led to more consistent harvest quality every cycle.

VIVOSUN LumaLight 750W Full Spectrum LED Grow Light

Scaling up to a 5×5 canopy introduces a familiar problem: center-heavy output, weak edges, and lower bud sites that never receive enough light to develop fully. The VIVOSUN LumaLight 750W LED Grow Light addresses this with its Micro-Lens Optic System — precision-curved, wave-shaped lenses that boost PPFD by up to 20% and push photons deeper through the canopy than flat-lens designs allow. The result is 900 µmol/m²/s at 12 inches, up to 0.89 uniformity across the full 5×5 ft footprint, and a full-spectrum output — 3000K, 5000K, 660nm, and 730nm — that drives every growth stage from seedling through final harvest.

The LumaLight 750W is engineered for demanding, long-run environments. IP65-rated sealed light bars lock out dust, moisture, and cleaning chemicals, while integrated heatsink fins manage heat passively across a 36,000-hour Q90-rated lifespan. Dial intensity manually with the onboard 4-level dimmer, or pair with the VIVOSUN GrowHub (sold separately) to automate lighting schedules and monitor output remotely through the GrowHub app.

Explore the LumaLight Series: The LumaLight family covers the full range of grow tent sizes. Check out the LumaLight 100W, LumaLight 150W, LumaLight 200W, LumaLight 320W, and LumaLight 500W models. All feature the same professional-grade spectrum and smart control compatibility.

Features

🔬
Micro-Lens Optic System

Precision-curved and wave-shaped lenses concentrate and redirect light, boosting PPFD by up to 20% and driving output deeper into the canopy for stronger development top to bottom.

📐
0.89 Uniformity Across 5×5 ft

The scientifically arranged light-bar matrix delivers 900 µmol/m²/s at 12 inches with up to 0.89 uniformity, eliminating hot spots so every plant gets consistent intensity from edge to edge.

🌈
Optimized Full Spectrum

3000K, 5000K, 660nm red, and 730nm far-red LEDs deliver a complete photosynthetic spectrum from veg through late flower, accelerating flowering time and supporting heavier yields.

📱
GrowHub & App Control

Compatible with the VIVOSUN GrowHub and mobile app for remote scheduling and monitoring, plus a 4-level manual dimmer (25%–100%) for standalone use.

💧
IP65 Sealed Light Bars

Fully sealed bars protect LEDs from dust, mist, and cleaning chemicals — wipe down without interrupting your grow or risking component damage.

❄️
36,000-Hour Q90 Lifespan

Integrated heatsink fins improve airflow and reduce heat buildup, maintaining consistent brightness for years of reliable harvests.

Spectrum Chart

Veg Growth Flowering Blue Green Red Far-Red
  • Blue Light(400–500 nm)Promotes compact vegetative growth and strong root development.
  • Green Light(500–600 nm)Penetrates deep into the canopy and supports overall photosynthesis.
  • Red Light — 660nm(600–700 nm)Drives stem, leaf, and flower development; accelerates flowering time.
  • Far-Red Light — 730nm(700–800 nm)Regulates photoperiod response and enlarges leaves for higher light capture.

PPFD Performance

Distance Average PPFD
12" 900 µmol/(m²·s)
14" 864 µmol/(m²·s)
18" 795 µmol/(m²·s)

Specifications

Specification Value
Model LumaLight 750W
Wattage 750W
Input Voltage 120–240VAC, 50–60Hz, Max 7.3A
Spectrum Full Spectrum (3000K, 5000K, 660nm Red, 730nm Far-Red)
PPFD 900 µmol/m²/s at 12 in.
Uniformity Up to 0.89
Light Coverage 5 × 5 ft
Dimming Manual: 25% / 50% / 75% / 100% / OFF  |  GrowHub App: 25%–100% / OFF
Smart Control Compatibility VIVOSUN GrowHub (sold separately)
Waterproof Rating IP65
Lifespan 36,000 hrs. (Q90 flux maintenance)
Dimensions 43.3 × 43.3 × 2.9 in. (110 × 110 × 7.4 cm)
Weight 18.7 lbs. (8.5 kg)

Grow Light Settings by Growth Stage

Setting Seedling (🌱) Veg (🌿) Early Flower (🌸) Late Flower (🌼)
Light Cycle 18 Hours ON 18 Hours ON 12 Hours ON 12 Hours ON
Dimming Level 50% 75% 75% 100%
Distance from Canopy 60 cm 45 cm 35 cm 35 cm

Choose the Right LumaLight for Your Grow

Model Wattage Coverage Best For
LumaLight 100W 100W 2 × 2 ft Propagation, seedlings, micro grows
LumaLight 150W 150W 2 × 2.7 ft Small tents, early veg supplemental
LumaLight 200W 200W 4 × 2 ft Compact rectangular canopies
LumaLight 320W 320W 3 × 3 ft Mid-size tents, high-density canopies
LumaLight 500W 500W 4 × 4 ft Standard 4×4 grows, high-yield production
LumaLight 750W ✓ 750W 5 × 5 ft Large tents, commercial-scale canopies

Warranty

The LumaLight 750W LED Grow Light is backed by a comprehensive 5-year after-sale service warranty, ensuring long-term reliability and peace of mind for your indoor growing operation.

FAQs

What grow space is the LumaLight 750W designed for? +

The LumaLight 750W is purpose-built for a 5×5 ft canopy footprint — the largest tent size in the LumaLight lineup. Its scientifically arranged light-bar matrix achieves up to 0.89 uniformity across that coverage area, ensuring plants along the perimeter receive comparable intensity to those directly beneath the fixture. For a 4×4 tent, the LumaLight 500W is the better-matched option.

How does the Micro-Lens Optic System improve PPFD? +

The Micro-Lens Optic System uses two lens types working together: curved precision optics that narrow the beam angle for higher PPFD, and wave-shaped optics that diffuse light multi-directionally for deeper canopy reach. Combined, they boost PPFD by up to 20% over standard flat-lens designs, pushing more usable light to lower bud sites and improving development throughout the entire plant.

Can I dim the LumaLight 750W without the GrowHub? +

Yes — the LumaLight 750W operates fully as a standalone fixture using its onboard 4-level dimmer knob (25%, 50%, 75%, 100%). The VIVOSUN GrowHub (sold separately) is an optional upgrade that adds remote monitoring, automated lighting schedules, and stepless 25%–100% app-based dimming for growers who want hands-free precision control.

Is the LumaLight 750W safe to use in a high-humidity grow environment? +

Yes — the IP65 waterproof and dustproof rating means the light bars are fully sealed against water spray from any direction and completely dust-tight. You can safely water plants, apply foliar sprays, or wipe down the fixture with cleaning solutions without risking component damage or reduced lifespan, making the 750W well-suited for high-humidity flowering environments.

What spectrum does the 750W use, and does it cover all growth stages? +

The LumaLight 750W combines 3000K and 5000K white LEDs with 660nm red and 730nm far-red diodes to create a balanced full spectrum that supports every stage from seedling through harvest. The 660nm red accelerates flowering and increases yield, while the 730nm far-red regulates the photoperiod response and promotes larger leaves — no need to swap fixtures between growth phases.

How long will the LumaLight 750W maintain its output? +

The 750W carries a Q90 flux maintenance rating of 36,000 hours, meaning it retains at least 90% of its original light output for that duration. Running 18 hours per day, that exceeds 5 years of consistent performance. Integrated heatsink fins passively dissipate heat to protect LEDs and internal components from thermal stress across many grow cycles.

Does the LumaLight 750W work with 240V power supplies? +

Yes. The LumaLight 750W accepts 120–240VAC input at 50–60Hz, making it compatible with both standard North American outlets and 240V setups common in commercial or multi-light installations. No voltage converter or adapter is required.

What warranty comes with the LumaLight 750W? +

The LumaLight 750W is backed by VIVOSUN's 5-year after-sale service warranty, covering the fixture against manufacturing defects and ensuring long-term support for your growing operation — whether you're running a single tent or a multi-light commercial setup.

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