Photoperiodic Lighting

Photoperiodic Greenhouse Lighting of Mums with TotalGrow TG1A-1004 Night & Day Management Light LED Bulbs
Who needs it?
Photoperiodic lighting is a low intensity light used to simulate long days. Known as day-length extension, night interruption, night-break or mum lighting, this lighting triggers earlier flowering in long-day plants and delays flowering in short-day plants.
Usage Guidelines:
10'x10' spacing of Night & Day Management Light bulbs, approximately 7' above the crop. For best results, do not space more than 12' apart. Run lights for sufficient hours after sunset/before sunrise to achieve at least 14 hours of continuous lighting, or for 4+ hours in the middle of the night to reduce dark periods to less than 10 continuous hours. Contact us for recommendations specific to your application.
Boom Lighting Guidelines:
Use one Night & Day Management Light bulb per 400 sq ft of grow area. Ideal heights above crop canopies are approximately 2/3 of bulb spacing, e.g. 2' heights for 3' spacing or 1' heights for 1.5' spacing. Contact us for recommendations specific to your application.
Examples:
TotalGrow LED Lighting Improving Rooting and Flowering Times at Micandy Gardens

Micandy Gardens:
Bedding plant propagation, 10'x11' bulb spacing

We discovered that we can drastically reduce rooting times with TotalGrow™ Night & Day Management Lights for fuchsia, petunia, calibrachoa, verbena, bacopa and other crops – as little as 1/3 of the time compared to even high intensity HPS lighting with up to 98% power savings! We are also amazed by the coverage uniformity, utility savings and electrical infrastructure savings.
Andy Buist, Head Grower

Meadowridge Using TotalGrow Night & Day Management LED Lights on Booms for Night Interruption Lighting

Meadowridge, Inc:
Boom lighting for flower intiation, 3' spacing, 135' boom run

The Night & Day bulbs are the perfect boom lights. I no longer waste time replacing burnt out bulbs or worrying about when a light failure will delay my production. The plants look great, and the costs are tiny for the area covered! I like knowing that all of the energy from the TotalGrow bulbs goes into the light plants need most, not wasted for human eye light.
Scott Gruppen, Production Manager

Kalamazoo Specialty Plants Mums Under Testing with TotalGrow Night & Day Management Flowering Lights

Kalamazoo Specialty Plants:
Mum flowering control tests, 10'x10' bulb spacing

TotalGrow™ Night & Day Management Light bulbs were very effective at controlling flowering times across a large collection of my mum varieties this fall. The lights will allow me to greatly reduce my power consumption compared to my existing HPS lights with better plant quality.
Rick Ouding, Owner

Stan Oudding Bedding Plants Flowers Wave Petunias Faster and Better With TotalGrow Flowering LEDs

Stan Ouding Bedding Plants:
Wave petunia flower initiation, 10'x10' bulb spacing

We have been extremely pleased with our Night & Day Management Lights. In addition to improving growth speeds and flowering times of our wave petunias, the uniformity of coverage, durability, and lower utility and installation costs of the lights are excellent. Greg Nowak, Owner

Pacific Ag Research Logo, Researchers Using TotalGrow Lights

Pacific Ag Research:
Canola plant flowering

Our canola plants had excellent flowering responses under our TotalGrow™ Night & Day Management Lights. The lights look good and are easy to work with.
Eric A. Flora, Western Area Manager



What Customers Say...

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Lettuce: Improved Yields & Power Savings
“We were very pleased with the results. Not only did the TotalGrow light out perform the HPS by 10%, but it did so using far less energy.  This fall, we invested in enough lights to fill a greenhouse. We fully intend to switch over all our greenhouses over the next few years. For us, TotalGrow lights last longer and use less energy and give better yields- it just makes sense.”
Steve Van Haitsma
Owner, Mud Lake Farm



Bedding Plants: Faster Rooting
“We discovered that we can drastically reduce rooting times with TotalGrow™ Night & Day Management Lights for fuchsia, petunia, calibrachoa, verbena, bacopa and other crops – as little as 1/3 of the time compared to even high intensity HPS lighting with up to 98% power savings! We are also amazed by the coverage uniformity, utility savings and electrical infrastructure savings.”
Terry Foster
Grower, Micandy Gardens



University Tests: Healthier Plants & Savings
“All plants we have tested (petunia, basil, and tomato) looked healthier under your TotalGrow™ lighting and used far less energy than the competing light sources.”
Youyoun Moon, Ph.D.
Professor of Horticulture, West Virginia University



Hops Propagation: More Cycle Turns
“We found that installing the TotalGrow light system has improved our plant quality and sped up our operations, which allows us to do more cycle turns and expand our business without putting up more greenhouse space.”
Lynn Kemme
Owner, Great Lakes Hops



Wave Petunias: Improved Flowering Times
“We have been extremely pleased with our Night & Day Management Lights. In addition to improving growth speeds and flowering times of our wave petunias, the uniformity of coverage, durability, and lower utility and installation costs of the lights are excellent.”
Greg Nowak
Owner, Stan Ouding Bedding Plants



University Tests: More with Less
“TotalGrow™ lights demonstrated the potential for drastic energy savings over HPS lights while producing crops of equal or better quality in our bedding plant testing. With 20% less PAR light intensity, our primrose plugs grew over 33% wider and taller with better green pigmentation than HPS.”
Robert McMahon, Ph.D.
Horticultural Technologies Professor Emeritus,
Ohio State ATI



Tomatoes: Bigger & Faster
“Our TotalGrow™ light fixtures have made it possible for us to grow larger, healthier tomatoes in significantly less time.”
David Allen
Business Manager, Peckham Farms



Boom Lighting: Efficient & Reliable
“The Night & Day bulbs are the perfect boom lights. I no longer waste time replacing burnt out bulbs or worrying about when a light failure will delay my production. The plants look great, and the costs are tiny for the area covered! I like knowing that all of the energy from the TotalGrow bulbs goes into the light plants need most, not wasted for human eye light.”
Scott Gruppen
Production Manager, Meadowridge, Inc.



Herbs & Microgreens: Faster Cycles
“TotalGrow™ Broad Grow Spectrum Light bulbs, or the 'magic bulbs' as I call them, have allowed me to grow extremely high quality herbs and microgreens in my basement without any sunlight at all. I have experienced a faster grow cycle with these bulbs and have none of the problems that I had with the fluorescent bulbs I used in the past. These lights have allowed me to expand my business beyond my original customers and support some larger demand customers.”
Christy Kaledas
Restaurant Gardener, Black Pearl Restaurant



Medicinal Plants: Lower Costs & Better Product
“The TotalGrow™ lights have the absolute best light spectrum and are very economical to use. They are low on electricity, very low. They are low wattage to begin with, but also don’t create the heat of HPS, so I don’t have to add as much humidity and do not need to pull heat out of the growing area. Both lower my overall cost and hassle. Stalks are fatter, leaves are healthier and all of that just leads to better medicinal product.”
Robert McClanahan
Owner, The Rainbow Makers

Broad Grow Spectrum Lighting

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