Growing lettuce and herbs with 100% Philips LED grow lights

Great Lakes Growers in Burton, Ohio is now growing 100% of their lettuce and herbs under Philips LED toplighting. John Bonner, the owner of Great Lakes Growers began trialing LEDs in 2015 and after seeing the success in a small area, expanded the Philips LED toplighting installation in 2016 and again in 2017.

Grower: Great Lakes Growers
Sector: Specialty - lettuce and herbs
Philips Product: GreenPower LED toplighting
Spectrum: Deep Red / Blue Low Blue (DR/B LB)

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[partypillz]

Seems like there getting more sunlight than led

[terrycameron]

What's a greenhouse it gets all the natural light and you supplement the LEDs don't forget to say that

[willcar]

Those plants are getting 99.9% sun and .01% led. Good investment in lights lol

[deecline]

Hi, I'm just starting to learn about lighting systems and have a couple of questions. I thought LED's were supposed to be only a couple of feet away from plants, and notice your lights look like they are around 10 feet away from the lettuces. Do they perform better at that distance? And what do they do for the plants that the sunlight coming in from the greenhouse walls and ceiling isn't doing? Thank you very much.

[tangobayus]

The lights seem to a be a long way from the plants. Do you consider the inverse square law?

[sathishkumar-crmt]

Can we use this lights for flower seedling process?

[tangobayus]

Good nutrition makes the most difference on flavor and health.

[wowiealbarracinmcclaskey]

Which light? How far from canary? Avg par?
Spectrum?

[impulsiveurge]

why do use growlights when your plants are exposed to the sun?

[FOATE]

Why still the blue and red LEDs? Daylight LED's have a much higer par per watt output often even if you only count the 400-450 and 600-650 nm range. Besides plants DO use green light, it might only have 70% of the photosynthetic efficiency but if it represents a large enough portion of the light emitted, like with sunlight or daylight LEDs, it's still worthwile. Even if you combine say a 5000k with monochrome red, why wouln't you just pick a lower kelvin?

[codyshand]

P looking for help will wild lettuce grow under natural host light or by the or maybe just under a lamp looking to grow wild lettuce need some help thanks

[m.p.juggler]

It looks as if the lights are way to far from the plants. Does any photon reach the canopy over this distance? 5 Meter or more?

[klchai]

DON'T UNDERSTAND WHY HE WANTED TO USE LED LIGHT SINCE HE IS NOT DOING VERTICAL FARMING, SOME MORE, RELATIVE TO THE SPACE, THE LED LIGHTS THERE ARE DEFINITELY TOO LESS, I DON'T THINK THE LED LIGHT PLAY ANY ROLE IN THE GROWING OF HIS VEGE.

[mselliebklyn]

Is there anything that can be used in the home for sale. Almost like the Philips Hue but with grow lights?

[eduardogonzalez]

Good afternoon, how much is the cost to install the LED light for Square meter to grow hydroponic lettuce. thank you

[grandpasfarmridesagain]

My friend gave me some led lights but i sold them

[travkel]

Placebo effect. Those LED lights have no chance of distributing their photons to any of those plants in any meaningful way. Trust me I actually useThe required spectrometer as well a par meterAnd even tighter stacked LEDs from nowadays need to be less than 36 inches away from the top of the crop