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Commercial Indoor
High-performance lighting for tiered rooms and large-scale operations.
Explore Commercial Indoor
PRECISION HORTICULTURE LIGHTING
Precision Light for
Every Growing
Environment
Weltesim designs premium LED lighting solutions that help commercial cultivators achieve consistent quality, improved efficiency, and healthier yields.
Supporting growers across North America
Solutions for Every Growing Environment
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Vertical & Specialty
Flexible solutions for vertical farms, microgreens and specialty crops.
Explore Vertical & SpecialtyFEATURED HORTICULTURE LIGHTING
Three Product Categories. One Clear Starting Point.
QB
Model details available
Quantum Board Grow Lights
100 W to 600 W quantum-board configurations, including covered and foldable options.
8 listed models100–600 WAC 100–277 V
Quick product view →CT
Model details available
Clip & Tripod Grow Lights
Round-head, square-tube and adjustable tripod formats for indoor supplementary lighting.
16 listed models4–40 WUSB / DC input
Quick product view →TB
Model details available
T8 & Rigid Grow Light Bars
Rigid bars and T8-style fixtures for shelves, racks and fixed indoor installations.
7 listed models9–48 WAC / DC input
Quick product view →HORTICULTURE SCIENCE
Light That Works
With Your Plants
Full-spectrum LED lighting designed to support plant development from propagation through flowering.
- Purposeful spectrum
- Light distribution
- Engineered efficiency
Full Spectrum for Healthy Plant Development
UV400500600700Far Red
Understanding PPFD / PAR
PPFD describes the light available at plant canopy. Explore model-specific data with our team.
Model data available on request.Built for Your Success
01
Discover
Share your facility, crop and goals.
02
Design
We recommend a lighting plan.
03
Implement
Quality fixtures, ready to grow.
04
Grow
Precision lighting that performs.
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Support
Ongoing guidance when you need it.
FACTORY REFERENCE PHOTOS
See the manufacturing environment behind the conversation.
These factory photos are provided as manufacturing context for Weltesim LED lighting. Final configuration, inspection scope and supporting documents are confirmed for each order.
ASSEMBLY
Production-floor assembly
A supplied factory photo showing LED lighting assembly work and the production-floor workflow.
AGEING LINE
Operating-line observation
A supplied factory photo showing a lighting ageing line in operation.
MEASUREMENT AREA
Optical measurement equipment
A supplied factory photo of optical measurement equipment used in the LED lighting manufacturing environment.PROJECT SCENARIO
Start with a
clearer project brief.
ILLUSTRATIVE PROJECT FRAMEWORK · NOT A CUSTOMER CASE
COMMERCIAL INDOOR · LEAFY GREENS
From fixture shortlist to an installation-ready lighting brief.
A multi-room leafy-greens facility is reviewing LED options for a new growing zone. The purpose of this example is to show the inputs a commercial project needs before a supplier can recommend a verified model and layout.
- Project inputs
- Canopy dimensions, crop stage, mounting height, aisle layout, available voltage, and operating schedule.
- Lighting review
- Compare model-specific PPF, fixture geometry, documented PPFD conditions, dimming approach, and installation requirements.
- Acceptance plan
- Confirm the selected configuration, technical documents, factory testing scope, accessories, packing details, and shipment inspection record.
Replace this framework with approved customer scope, photographs, and measured results when a real project is ready to publish.
Start a Project Brief →RESOURCE LIBRARY
Learn. Implement.
Grow Better.
Practical buyer guides for commercial lighting decisions, installations, and project documentation.
View commercial buying guide
How to Choose Commercial LED Grow Lights
A B2B buying guide for output, layout, documents, and inspection.
Bar LED vs. Quantum Board Panels
A practical comparison for commercial cultivation projects.
Greenhouse Supplemental LED Lighting
Plan DLI, controls, installation, and project documentation.
LED Spectrum for Cut Flowers
Plan blue, red, and far-red light around crop stage and measurable production outcomes.
READY TO GET STARTED?
Let's design the right
lighting for your grow.
Tell us a little about your project and our team will be in touch with a custom recommendation.