LED Grow Light Manufacturer · Since 2010 · Dongguan, China

Factory-Direct Cannabis LED Grow Lights

For professional cultivators and OEM partners, we engineer high-efficiency LED systems for commercial greenhouse and indoor cultivation at scale. The range covers top lights 600W–1600W and under-canopy bars 120W–300W, stocked in China, the US and Canada. Every project is backed by free lighting plans and full OEM/ODM for brands and distributors.

SLTMAKS top lights and under-canopy lights running in a licensed cannabis flower room
Top lights + under-canopy rows running in a licensed facility
Since 2010In the LED lighting industry
130+Certificates & patents (32 invention)
10,000+Fixtures shipped monthly
150+OEM & private-label customers

Total Canopy Saturation: High-Intensity Top Grow Lights & Under-Canopy Grow Light Systems

Eliminate shade-stunted yields. Traditional top lighting often leaves lower bud sites in the dark, leading to 'popcorn' buds. By integrating SLTMAKS high-output Top Grow Lights with targeted Under-Canopy LED Grow Light Bars, you ensure every layer receives optimal PPFD. Our dual-layer strategy is engineered to maximize flower density, increase overall harvest weight, and deliver crop consistency. One Supplier. Total Coverage. Maximum ROI.

SLTMAKS 600W–1600W LED top lights over flowering cannabis canopy

LED Top Lights

600W – 1600W · ECO / 4×4 / 4×6 / 4×8 / Golden / Spider / Tri-Fold
  • PPE up to 3.5 μmol/J (Golden 1300W), PPF up to 4650 μmol/s
  • Samsung / OSRAM / CREE LED options · UL Sosen drivers
  • Single / dual / three-channel spectrum with 0–10V dimming
Explore Top Lights →
SLTMAKS under-canopy LED grow lights 120W-300W above the trellis in a licensed room

Under-Canopy LED Bars

120W · 150W · 240W · 300W · 4Ft & 8Ft
  • PC Cover / Glass Cover / Advanced 270° Version / 3-sided illumination variants
  • Peer-reviewed 2025 research: +25–30% dry flower yield*
  • RJ12 daisy-chain, compatible with most market controllers

*2025 peer-reviewed trial (MDPI): +24.58% dry flower, +29.95% intercanopy yield vs top-light-only. Full data in the guide →

Explore Under-Canopy →

A Verified LED Grow Light Manufacturer - 30 Years of LED Innovation & In-House R&D

Stability is the foundation of commercial cultivation. At SLTMAKS, we back your facility with deep technical heritage and world-class quality control.

  • Expertise: Led by a 30-year LED industry veteran.
  • Intellectual Property: 130+ patents, including 32 breakthroughs in invention.
  • Quality Control: In-house SMT lines, aging rooms, and integrated-sphere testing, etc.
  • Compliance: Fully ISO-certified operations and ETL DLC CE product certificates ensuring global delivery standards.

Verify our facility via live video tour—see the precision behind the harvest.

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Book a Factory Tour Inside the Factory
SMT placement line Assembly production line Aging test racks Integrated sphere lab

Grow Lights 101: Cultivation & Procurement Resources

We believe the best-informed buyers make the best partners. Our resource center provides high-level technical guides designed for professional cultivation managers and industrial procurement teams. From spectrum physics to financial ROI models, we simplify the science of light to help you scale your facility with confidence.

Featured · Flagship Guide

Under-Canopy Lighting for Cannabis: What 2025 Peer-Reviewed Research Actually Shows

Subcanopy supplemental lighting raised dry inflorescence yield 24.58% and total THC 24.4% in a controlled medicinal cannabis trial. We break down the numbers, the ROI model and how to retrofit.

Read the guide →
Fundamentals

PPFD & DLI for Cannabis: Targets by Stage

Flowering targets, CO₂-adjusted ranges and how to read a PPFD map before you buy.

Read →
Procurement

Grow Light Certifications: UL, ETL, DLC & CE

What each mark means for your insurance, utility rebates and inspection readiness.

Read →

Proven in Licensed Facilities: Real-World Performance Data

Transparency is our strongest proof. We document our commercial projects with precise fixture counts, specific room dimensions, and documented harvest results. These aren't just estimates - they are direct, grower-reported numbers from active licensed facilities. Explore our full technical write-ups to see how SLTMAKS engineering performs under real-world pressure.

Golden 1300W installation in U.S. flower room
Case 01 · Golden 1300W Trial · U.S.

32× Golden 1300W in a 1000 sq ft flower room before full facility retrofit

230 lbsfinal yield (~104.3 kg)
7.2 lbsaverage yield per light
4×6Ft 1000W project
Case 02 · 4×6Ft 1000W · OKC, U.S.

38× 4×6Ft 1000W fixtures in a 1200 sq ft room, referred by a neighboring farm

235 lbsfinal yield (~106.6 kg)
6.2 lbsaverage yield per light
Toplight and under-canopy combined installation
Case 03 · Top + Under-Canopy Strategy · U.S.

5 × 1200 sq ft rooms: 200× 4×6Ft 1300W dual-channel top lights + 600× 120W under-canopy

1,372 lbstotal harvest (~622 kg)
30%yield increase
Flowering room with full-spectrum LED bars Large-scale veg room aerial view Indoor rows under mixed-spectrum top lights Greenhouse retrofit with LED top lights
Project Gallery · Licensed Facilities

More application scenes from indoor rooms & greenhouses

View the project gallery →
Strategic component partners

Ready for More Yield? Get Your Free Lighting Blueprint

Don't leave lower bud sites in the dark. Send your room dimensions, current top-light PPFD and target, and we'll calculate the exact fixture count and layout needed to maximize canopy saturation, before you spend a dollar.

  • ✓ Free lighting plan & PPFD estimate
  • ✓ Sample orders welcome
  • ✓ Reply within one business day
  • ✓ NDA-friendly for OEM / ODM projects