P.L. Light Systems prism logoP.L. LIGHT SYSTEMSThe Lighting Knowledge Company
THE LIGHTING KNOWLEDGE COMPANY

Premium horticultural grow lighting solutions for commercial growers

P.L. Light Systems is a leading manufacturer of LED and hybrid horticultural lighting, engineered for commercial greenhouses and indoor growers since 1981.

45+years of expertise
North Americasales and service
IP66wet-location rated · every LED fixture
PRODUCTS

Engineered fixtures, designed for growers

LED Fixture

ParFX Ultra

Full-spectrum LED, dynamic spectrum recipes prepared to order. The flagship fixture across our Tier 1 commercial installs.

LED Fixture

TriPlane Linear

Modular linear LED bars for uniform PAR across greenhouse, vertical, and lettuce canopies. Retrofit-ready mounting.

Also available
Product certifications

Every P.L. Light Systems LED fixture is DLC Horticultural listed, the credential utility rebate programs look for.

CSA certified for electrical safety, with one mark covering both Canada and the United States.

IP66

IP66 wet-location rated to stand up to greenhouse humidity, condensation, and washdowns.

FIND YOUR PATH

Lighting tuned to what you grow

Every crop has a different light recipe. We design photoperiod, intensity, and spectrum specifically for your operation, not generic fixtures off a shelf.

Vegetables

Tomato, cucumber, pepper, leafy greens. Yield-optimized recipes for high-wire and table operations.

Floriculture

Cut flowers and potted plants. Photoperiod control and quality-grade spectrum for stem strength and bud count.

Cannabis

Hybrid HPS and LED systems for flower, veg, and propagation rooms.

FEATURED INSTALL

Year-round lily harvests, powered by LED

B&G Visscher, Otterville, Ontario. The retrofit from HPS to TriPlane Linear SQ LED cut lily force time by 1 to 2 weeks, even as supplemental lighting hours doubled and electricity rose only 10 percent. Hover the hotspots to see the engineering decisions behind the install.

Tomato · LED

SoulFood Greenhouse

HortiLED full-spectrum lighting for high-wire tomato production.

Leafy Greens · LED

Vertical Harvest

Multi-tier LED design with crop-specific spectrum tuning per layer.

OUR STORY · 1981 TO 2026

45+ years of horticultural lighting

From replacement bulbs in a Beamsville warehouse to full-facility engineered systems. Dutch craftsmanship, built to North American standards.

P.L. Light Systems customer service team at the Hamilton, Ontario facility
Ontario, Canada
Engineered in-house
Lighting specialists, not distributors.
WHY P.L. LIGHT SYSTEMS

The Lighting Knowledge Company

Every light plan we deliver is engineered by horticultural lighting specialists, not configured from a catalog. Since 1981 we’ve been the technical partner growers turn to when the lighting decision actually matters.

KNOWLEDGE CENTER

Lighting science, made practical

P.L. Light Systems and Dutch Lighting Innovations representatives shaking hands beneath the P.L. Light Systems sign

Strategic Partnership of P.L. Light Systems Canada Inc. and Dutch Lighting Innovations Holding B.V.

P.L. Light Systems has completed a strategic partnership agreement with Dutch Lighting Innovations. Through this partnership, P.L. Light Systems is poised to expand its best-in-class service to customers across the continent.
Read Article
Rows of green and red lettuce growing under LED toplighting in a glass greenhouse

Summer Spectrum Strategies: Optimizing Greenhouse Lighting Efficiency | Expert Article

The question is no longer whether to light during summer months, but how to light strategically — matching spectrum, intensity, and timing to seasonal sun conditions to maximize photosynthetic return per kilowatt-hour.
Read Article
P.L. Light Systems 45th anniversary badge, established 1981

P.L. Light Systems Celebrates 45 Years of Horticultural Lighting Leadership in North America

P.L. Light Systems proudly marks its 45 years of service as a premium North American manufacturer of commercial horticultural lighting.
Read Article
FREQUENTLY ASKED

Common questions about horticultural lighting

HPS (high-pressure sodium) fixtures produce a broad-spectrum, warm-toned light at high intensity for low capital cost. LEDs offer tunable spectrum, lower energy draw, and longer fixture life, but with higher upfront investment. Most modern commercial installs use a hybrid approach.
Submit your facility specs (room dimensions, crop, target DLI) through our Request a Light Plan form. A horticultural lighting specialist will respond within 1 to 2 business days with an engineered proposal.
Yes. P.L. Light Systems sells and services horticultural lighting across Canada, the United States, and Mexico. Each region is owned by a named regional sales manager.
What growers say

Hear it from the growers

Growers who light their operations with P.L. Light Systems, in their words.

The support of P.L. Light Systems has been tremendous. Their in-depth demonstration of the spectrum and efficiency of their lights is second to none. We had one fixture with a warranty claim, and it was replaced (exchanged) promptly with no hassle. P.L. Light Systems offers excellent value in their offering.
Jan VanderHout Owner
P.L. Light is a trusted long-term partner. They are nimble and flexible, going the extra mile to help our projects succeed. Their staff are polite, professional, and pick up the phone when we call. Their technical skill and humble, honest approach to their work when combined with the performance of their products and warranty support makes them a first-call resource for us when we have lighting needs.
Stephen Sottile Senior Manager – Energy, Capital Projects & Conservation
On top of their excellent commercial products, P.L. Light Systems offers the best customer service in the industry. They are always responsive and flexible with any of our lighting support needs. Over the years and countless installations, we know that we can always trust that the engineered light plans provided by P.L. are spot on and delivered exactly as planned, never overstated.
Ralph DeBoer Owner

Ready to design your grow lighting system?

Tell us about your facility and crop. We’ll send back an engineered light plan with photometric simulation, fixture spec, and DLI targets tailored to your room.

Newsletter

The Lighting Knowledge Company, in your inbox

Monthly notes from P.L. Light Systems: spectrum and DLI research, LED retrofit results, and field experience from commercial growers.

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