You are now visiting our Global professional lighting website, visit your local website by going to the USA website

More brands from

Lettuce grower switches to

100% Philips LED toplighting 

Lettuce grower switches to
Lettuce grower switches to
Lettuce grower switches to

Great Lakes Growers
Ohio, USA


In just a matter of six years, John Bonner has expanded Great Lakes Growers into a greenhouse operation of more 85,000 square feet. 


Great Lakes Growers specializes in growing fresh, tasty, pesticide-free lettuce and herbs for local grocers, markets and restaurants in Northeast Ohio and beyond.

John Bonner, the owner of Great Lakes Growers - Philips LED toplighting

The color is much deeper, darker, richer with LEDs.

The taste is better with LEDs.”


-John Bonner, Owner 

Bedding plants Florensis

The challenge


Since the start of his business, Bonner relied on traditional HPS lighting to meet the company’s supplemental lighting needs. However, the promise of LED grow lights intrigued Bonner. After reading and researching the different LED products and options, Bonner decided to conduct his own in-house trial with Philips LED toplighting. 


The right lighting


In a controlled trial, first over lettuce and then over herbs, Bonner tracked and compared growing under 600 W HPS to growing under Philips LED toplighting (DR/B LB).


Growing lettuce under the LEDs, Bonner noted many qualitative and quantitative benefits including:


• 30% production increase

• Reduced tip burn

• Improved color


Philips GreenPower LED toplighting

Philips GreenPower LED toplighting


With Philips LED toplighting, Bonner estimates a production increase of approximately 30 percent. This, coupled with improved product quality, guided Bonner in his decision to make a complete switch to Philips LED toplighting.

Taking the lead
with horticulture LED lighting technology

The team

Great Lakes Growers



Philips LED Horti Partner

Related cases

  • Neurather Gärtner, Neurath

    Neurather Gärtner, Neurath

    Growing summer-tasting tomatoes all year round

  • Welroy Fruit, Wellen

    Welroy Fruit, Wellen

    Strawberries ahead of the rest

  • Delicious Cook Co. Ltd.

    Delicious Cook Co. Ltd.

    Indoor cultivation yields fesh, safe, readymade meals.

  • Queen


    With LED we get two to three days faster rooting, which is 25% faster all year round.

  • Wim Peters Kwekerijen

    Wim Peters Kwekerijen

    Consumers prefer LED grown tomatoes

  • Vikars Grönsaker AB

    Vikars Grönsaker AB

    20% more yield, thanks to higher plant density enabled by LED interlighting

Contact us

Contact certified partners


Philips products are sold through a global network of certified partners. Find partners in your region for information.


Contact Philips 


We are here to address all of your questions and remarks, please use our detailed form for elaborate questions.


Subscribe to newsletter


Receive our newsletter every three months to stay up to date about Philips LED lighting in horticulture.




Learn more about LED lighting in horticulture by reading our latest articles and case studies.