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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.

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

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
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
Grower
AgriNomix
Philips LED Horti Partner
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