SKU: 29879142644
4ft t8 grow light bulbs

4ft t8 grow light bulbs PhotonTube™ T8 LED Grow Light Tube for Horticulture – Waveform Lighting

$22.46 $24.96
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Description

4ft t8 grow light bulbs PhotonTube™ T8 LED Grow Light Tube for Horticulture – Waveform LightingAvailable in 4000K or 6500K to simulate natural sunlight 4 ft nominal length Full spectrum coverage from 420 nm to 800 nm with optimized spectra for plant growth 1. 8 umols J efficiency 33 umols sec photon flux output Well suited for seedlings and vegetative growth 95 CRI and R9 > 80 Input voltage: 120, 208, 240 or 277 V AC G13 (Medium Bi pin), not polarity sensitive (single or double ended compatible) Use with existing fluorescent fixtures* or our

  • Available in 4000K or 6500K to simulate natural sunlight
  • 4-ft nominal length
  • Full spectrum coverage from 420 nm to 800 nm with optimized spectra for plant growth
  • 1.8 umols/J efficiency
  • 33 umols/sec photon flux output
  • Well suited for seedlings and vegetative growth
  • 95 CRI and R9 > 80
  • Input voltage: 120, 208, 240 or 277 V AC
  • G13 (Medium Bi-pin), not polarity sensitive (single or double ended compatible)
  • Use with existing fluorescent fixtures* or our LED-ready fixtures
  • Features TriplePlay™ technology - works with both approved ballast* and ballast-bypass fixtures
  • 18 Watt power consumption
  • 50,000 hours lifetime, 5 year warranty
  • Available in packs of 4 tubes or 24 tubes

*WARNING: This LED tube light must not be used with any fluorescent ballasts that are not listed on our approved ballast list. Do not install the LED lamp in a fixture with a fluorescent ballast that is not included in the approved ballast list as this can pose a fire and shock risk.

Product Overview

PhotonTube™ is a new LED tube product line that has its light output tuned to the spectral and intensity needs of growing plants. The T8 PhotonTube™ offers 33 umols/sec of photon output, with spectral coverage across the PAR spectrum from 420 nm to 800 nm.

Because this is a full-spectrum product, the resulting light output is a soft white color that simulates natural daylight, rather than the harsh pink/magenta light color typically seen in grow lights. This makes it easier and more comfortable for you, the grower, to see and observe your plants, and spot any diseases or infestations before it's too late.

Our PhotonTube™ LED grow lights are available in 4000K and 6500K, with 95 CRI and R9 > 80 - this indicates a color spectrum that comes very close to natural sunlight.

These T8 LED tubes are UL Type A and Type B compatible, meaning they can be used with or without a fluorescent ballast. Plug it in directly to your existing T8 fixture, or a new fixture with the ballast removed - whatever is easier!

4000K provides an excellent spectral output for strong growth and flowering. In addition to strong output in the blue 450 nm region, RedBoost red phosphor technology ensures sufficient coverage in the deep red portion of the spectrum past 700 nm, targeting chlorophyll A absorption in particular.

The spectral ratio simulates late-season light, stimulating plant processes that encourage flowering and fruit growth.

The 6500K spectrum comes very close to natural daylight, truly simulating what plants have adapted to over many generations. It is especially well suited for seedling growth, and helps to prevent them from becoming "leggy" as the spectral dosage perfectly matches that of natural daylight.

Plants in the seedling stage require significant amounts of blue light to encourage vegetative growth, as it is similar to a high sun-angle spectral composition that is typically observed in early-season grow periods.

Seedling and vegetative growth are absolutely critical components of healthy plants. Without a healthy foundation, plants can suffer from stunted growth and limited yield.

Waveform Lighting 100% Quality and Satisfaction Guarantee

If you're not 100% satisfied with the performance, color or quality of your product, we'll work with you to make it right.

Simply contact us within 30 calendar days after delivery and we'll send a replacement at no additional charge, or offer you a full refund.

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SKU: 29879142644

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4.0 ★★★★★
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Barbmom
Whiting, US
★★★★★ 5
Wonderful book
Format: Hardcover
Alan Schore is a gifted reseacher and this book is a great addition to the field espeically for those of us that work with non verbal treatment.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 11, 2019
F
Verified Purchase
Fr. Charles Erlandson
New York, US
★★★★★ 5
Possibly the Most Important Theological Work of the 20th Century
Format: Paperback
Pope John Paul II's "Man and Woman He Created Them," popularly known as "A Theology of the Body" may be the most important theological work of the 20th century. I say this because John Paul II is not only a first-rate theologian but also because "Theology of the Body" strikes at the heart of a series of related issues that desperately need addressing today. "Theology of the Body" begins with the Pope's Trinitarianism, a fundamental doctrine that Christians often don't know what to do with. At the heart of his thinking, and all true Christian thinking, is God's self-giving love that is rooted in the Trinity. "Theology of the Body" also explores the nature of what it means to be human and made in the image of God. The book is titled "Man and Woman He Created Them" because it is especially in the relationship between a man and his wife that the relational and loving identity of God is revealed in humanity. Throughout, the Pope reaffirms the essential goodness of the human body. "Theology of the Body" is thus a profound theological work that I highly recommend to pastors, teachers, and educated laymen. Be aware: it's not an easy read! But a patient and thoughtful reading of "Theology of the Body" will, in time, become a blessing to the reader. One of the reasons it remains such a timely work is that it confronts some of the Gnostic tendencies in the Church today that spiritualize things and tend to downplay the significance and basic goodness of the body. At a time when humanistic and distorted views of human sexuality and identity abound, "Theology of the Body" provides an intelligent and profound rationale for the biblical, Christian meaning of sex, the body, and being made in the image of God. While Protestants may think that a work written by a Pope would be too Roman Catholic for them, in reality "Theology of the Body" is a work for the whole Church and all Christians. The book is filled with profound and rare insight into who God is and who man is. It will help to complete the theology of most Christian readers and also has important practical implications. Because the book was originally an extended series of lectures at times it can be unwieldy and difficult to comprehend. Sometimes it's difficult to understand what the Pope means in certain sections, since his writing is often dense. In spite of the difficulty in reading, it's well worth the effort. Because of the depth and difficulty of the work, some have found it beneficial to also read "Theology of the Body for Beginners" by Christopher West.
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Reviewed in the United States on August 22, 2011
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Daniel Francis Good
West Palm Beach, US
★★★★★ 5
Excellent
Format: Paperback
While some readers may find John Paul II's writing style a bit circular or highly philosophical, the message presented in this text will change your life. Still, it is not easy reading. It is a collection of 129 audiences given by John Paul II commonly called the Theology of the Body. The audiences are based on Sacred Scripture. In this new translation audiences that were not delivered are now included. The Theology of the Body treats sexuality, marriage, celibacy, anthropology, family life, responsible parenthood, the wound of sin, redemption, and the resurrection of the body. This book is in my top five of best books. I have read both translations and Michael Waldstein's is much easier to read than the first edition. The new headers at the beginning of each section that directly indicate what is being dealt with in the text. The introduction that Waldstein provides gives a theological and philosophical vision for understanding the text. This book is worth your time. It stands against the culture of death and promotes the Gospel of Jesus Christ. It holds the answers the hunger that society is so desperately grasping at. If you don't know much about the Theology of Body it would prove useful to read an introductory text by West, Hogan, or Percy & Schmitz. Christopher West, who is properly described as a catechist, has excellent presentations on the Theology of the Body in DVD and CD format that could prove helpful to a first time reader. On a personal note: The Theology of the Body has helped me so much. I am in Holy Orders and I don't think I would be where I am except for this message (and God's grace and His will). This isn't some message that you can simply read and understand - it is something that you have to approach with an open heart and mind with prayer. I really hope you read this book and promote it's message.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 28, 2009
S
Verified Purchase
saj
Bozeman, US
★★★★★ 5
Stupendous and Life-Changing
Format: Paperback
I'll never forget the way I first heard the Theology of the Body. I was a brand-new sister, having made my first vows the year Pope John Paul II was elected. My community used to read a snippet or two from the Papal Audience talks right after breakfast, before we scattered to the four winds in carrying out the day's mission. Bit by bit, as we made our way through an unusual series of meditations on the book of Genesis, I found that the whole theme of "gift" was beginning to resound within me. It was like a new wine being poured into the wineskin of the Church. Whatever our vocation, we are each called to be a "person-gift," as the Persons of the Trinity are "gift," given over unreservedly, and unreservedly received. In a vague way, even though I was still very young (!), I realized that something extraordinary was going to come from these talks, and that it would mean great things above all for women. It took twenty years for that message to begin to seep into the language of our Church culture, but now small groups of young adults and couples are beginning to meet in homes and conferences to ponder John Paul's vast, fully Christian vision of humanity. I've used the Theology of the Body to present the essence of the vow of chastity to our novices and junior sisters, and I keep looking for ways to introduce it to others, especially to people who find themselves struggling to understand the Church's teaching in all those areas that touch on our vocation to love. The beauty of its truth is hard to resist. This new and carefully researched translation offers more than just a consistent translation of key terms: previously unpublished units came to light; the Pope's original title and subtitles have been added; the whole content appears in the order in which the Pope meant for it to be covered. Yes, Dr. Waldstein's careful and scholarly introduction can be a bit overwhelming, but this book is worth taking the time simply to sit with. That's what you do with beauty anyway.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 31, 2008
A
Verified Purchase
Anna Sandstrom
Lowell, US
★★★★★ 5
Excellent Scripture-based compilation of lectures on human sexuality and marriage
Format: Paperback
This is a compilation of a series of lectures given by Pope John Paul II on the true meaning of sexuality and spousal union. It is a rather lengthy book, with lots of repetition because they are his lectures. At the beginning of each lecture, expect that he will "recap" what he discussed the previous time. It is good to read his actual words, but it requires patience to filter through the "new" material he presents because after a while you realize he is saying the same thing in different words; but, this may be required to get his message through to some readers/listeners. Each of us learns and grasps concepts differently, so his presentation of the material is geared toward universality in teaching the meaning of true spousal union as mutual self-gifting as given to us by God in the beginning before the fall in Eden. Using Scripture, JPII explains God's divine plan for human sexuality and its purpose; and he explains how objectification and selfishness in sexuality has led to a multitude of problems for society. He sees the sacramental aspect of marriage between man and woman through the eyes of Scripture. It is worth the time to read, but be patient with his repetitions, realizing that this was originally a lecture series. This book includes the "transcripts" of those lectures. Every Christian person--Catholic or not--should read his book to understand how sacred human sexuality is and how deviance destroys relationships.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 5, 2013

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