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Description
led light spectrum for growing plants Dimmable 70W Panel LED Grow Light (EU ONLY) EU 220V / 2 packKey Features THE SECONDARY OPTICAL DESIGN PPF: 103 mol s, PPFD: 350. 3 mol s @1ft. Through the lens for secondary scientific light distribution, improves light utilization, giving plants more supplementary light. Using only 70 watts of power, equivalent to 700W incandescent bulbs. Based on 18 hours per day usage, save up to 90% electricity. IMITATE THE SOLAR SPECTRUM Actualize a more ideal full life cycle full spectrum supplementary light program,
Key Features：
- 【THE SECONDARY OPTICAL DESIGN】- PPF: 103 μmol/s, PPFD: 350.3 μmol/s/㎡@1ft. Through the lens for secondary scientific light distribution, improves light utilization, giving plants more supplementary light. Using only 70 watts of power, equivalent to 700W incandescent bulbs. Based on 18 hours per day usage, save up to 90% electricity.
- 【IMITATE THE SOLAR SPECTRUM】- Actualize a more ideal full life cycle full spectrum supplementary light program, covering the entire visible spectrum of 400nm-780nm, suitable for every cycle of plant growth, effectively promotes plant growth, and improves crop yield and quality. Providing 4000K daylight, Ra is close to 100, infinitely close to natural light.
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- 【GUARANTEES】- ETL listed, CE certification, quality and safety verified, 25,000 hours lifespan.
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4.8 ★★★★★
Based on 442 reviews
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Product Reviews
★★★★★ 5
Good book. Insightful but an easy read
Format: Paperback
Good material in international relations.
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Reviewed in the United States on June 4, 2024
★★★★★ 4
This book is great to share with friends and an excellent conversation starter ...
Format: Paperback
A quick but thoughtful read. This book is great to share with friends and an excellent conversation starter without being exactly political, in the negative sense of the word. Inspires constructive conversation regardless of your background.
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Reviewed in the United States on February 18, 2017
★★★★★ 5
Best book on the subject
Format: Paperback
Short yet concise argument for ending wars.
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Reviewed in the United States on August 31, 2022
★★★★★ 5
A must learn
Format: Paperback
Too important to be forgitten
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Reviewed in the United States on July 14, 2019
★★★★★ 5
It's How Wars End That Become Important Afterward
Format: Paperback
The twentiety century taught us a lot about wars and how they end. World War I showed us that making strong demands on the defeated (who didn't admit defeat to their own people) set the stage for the next big war.
World War II was fought until the Unconditional Surrender of the Germans and Japanese. Something that thinkers still debate as having made them fight all that harder.
VietNam was fought with no clear end in sight, and "another VietNam" entered our language.
The first Gulf War was ended when Colin Powell and Bush II debated how to end the war. They stopped before they had to go in and see what the Sunni's, Shiite's and Kurds made of the power vacuum left by the removal of Saddam would have created. Bush II is learning about this now.
This is the second revised edition of this book, originally published in 1971 and then updated in 1991 and now 2005 to reflect happenings in new wars.
Still some of the old wars had interesting insights that I didn't know before, such as how Finland, originally on Germany's side against Russia, made a peace with Russia and kicked the Germans out before they became a Russian province. Great Book.
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Reviewed in the United States on April 6, 2005