Crop Lighting, Crop Lights,
PL Lights,
Hortilux Lights
Commercial Greenhouse Grow Lights & Supplemental Lighting Systems
USGR will provide quotes, designs and installation instructions Based upon your specific crop requirements, location and type of greenhouse or growing facility
PL Lighting and USGR bring you years of experience in providing the right plant growth lights for the greenhouse, nursery and forestry industries. We are honored to add Hortilux Europe to our product line.
IT IS NOT ENOUGH JUST TO SELL THE LIGHT FIXTURE AND QUOTE A PRICE
We provide design layout, even light distribution, electrical efficiency, installation components and most important, proper light for the crop you are producing.
The Right Greenhouse Lighting Makes the Difference
Choosing the right grow lights is about more than simply adding light to your greenhouse. Successful greenhouse lighting requires the right equipment, proper fixture placement, and a lighting design tailored to the greenhouse structure and the specific crops being grown.
USGR brings decades of experience in plant growth technology, helping greenhouse growers select lighting systems designed around the unique requirements of their crops and growing environments.
Since the early 1960s, USGR and its lighting partners, PL Lights and Hortilux, have been involved in greenhouse crop lighting, research, development, and horticultural lighting technology. Our goal is to help growers find the right lighting solution for their production needs.
You need the right light, installed and designed properly to fit the green house and crop your are growing. USGR has a 78 year background in plant growth technology for conditions around the world. Different crops have different needs, and some do not respond well to lights, and other can be over done with too much light. The vest majority of crops do respond – but the need of the plant varies. Are you lighting mums, for bud set, growing vegetable transplants? Rose need different standards.
As we have been in the greenhouse crop lighting industry since the early 1960’s, PL Lights/Hortilux Lights has led the way with the greatest research and development program and between our two companies hope to serve your lighting needs.
An important innovation that further improves the great PL Light System. PL has supplied two internal compartments. This improves heat removal as the fixture stays cooler and as such, extended life of lights is assured. A major improvement to the grow light fixtures.
Every Greenhouse Crop Has Different Lighting Requirements
Not all plants respond to supplemental lighting in the same way. Some crops benefit significantly from additional light, while others have specific requirements that make proper light intensity, duration, and timing especially important.
Too little light can limit plant development and production. Too much light, or improperly timed supplemental lighting, can be equally undesirable.
The right greenhouse lighting system depends on the crop, its stage of development, natural daylight availability, and the desired production results.
Examples of crop-specific lighting requirements include:
- Chrysanthemums (Mums): Lighting strategies for vegetative growth, photoperiod management, and flower bud initiation.
- Vegetable Transplants: Supplemental lighting to support healthy, uniform transplant development.
- Roses: Specialized lighting considerations based on crop requirements and production schedules.
- Flowering Plants: Lighting programs designed around flowering responses and photoperiod sensitivity.
- Greenhouse Ornamentals: Supplemental lighting selected according to species, production stage, and environmental conditions.
Every crop is different. A lighting system that works well for one greenhouse operation may not be appropriate for another.
USGR, PL Lights & Hortilux: Decades of Greenhouse Lighting Experience
With greenhouse crop lighting experience dating back to the early 1960s, USGR and its lighting partners understand the importance of matching lighting technology to real-world growing conditions.
PL Lights and Hortilux have contributed to greenhouse lighting research and development, helping advance supplemental lighting technology for commercial horticulture.


