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Description
best bulb for growing plants indoors SANSI BR30 36W LED Grow Light Bulb, Perfect for Home and Greenhouse. JP E26 / 3-packKey Features : 4000K Daylight: Imitate the solar spectrum, customize a more ideal full life cycle full spectrum supplementary light program, covering the entire visible spectrum of 400nm 780nm; Color rendering index Ra is close to 100, infinitely close to natural light, suitable for every cycle of plant growth, effectively promotes plant growth, and improves crop yield and quality. Secondary Optical Design: PPF: 65. 6 umol s, PPFD: 265. 58 mol s @
Key Features :
- 4000K Daylight: Imitate the solar spectrum, customize a more ideal full life cycle full spectrum supplementary light program, covering the entire visible spectrum of 400nm-780nm; Color rendering index Ra is close to 100, infinitely close to natural light, suitable for every cycle of plant growth, effectively promotes plant growth, and improves crop yield and quality.
- Secondary Optical Design: PPF: 65.6 umol/s, PPFD: 265.58 μmol/s/㎡ @ 1ft. Through the lens for secondary scientific light distribution, improve light utilization, give plants more supplementary light, and improve light bulb lifespan to 25,000 hours.
- Patented COC Technology: Chip on Ceramic, SANSI's patented technology replaces the traditional Mcpcb aluminum substrate with a non-conductive ceramic heat sink, and directly solder the LED chip on the ceramic heat sink, effectively reducing the system thermal resistance between the LED PN junction and the surface of the heat sink, resulting in faster heat conduction and higher product reliability, makes the SANSI bulb has higher light efficiency.
- Safe & Reliable: The lamp body is made of special ceramic material, and the flame retardant grade reaches V0; the reinforced insulation structure design, no risk of electric shock, is safer; the whole shell material reaches the WF2 anti-corrosion grade, which is more reliable; low IR, less heat radiation, avoiding close Distance exposure burns plants.
- Guarantees: ETL listed, quality and safety verified, 5-year protection plan.
Specifications :
Item Model Number: C21GL-CE26-36W
Wattage: 36W
Voltage: AC 120V 60Hz, 220V ship to EU/UK
Replacement Wattage: 400W Incandescent Bulb
Beam Angle: 60°
PPF: 65.6 μmol/s
Product Size: Φ116mm*H136mm
Weight: 0.836 lb
Tips :
1. Indoor use only.
2. Please do not use it in dimmable fixtures.
3. Please do not use it in totally enclosed fixtures.
4. The hanging distance between the luminous surface of the light and the plant is 30-50cm.
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4.3 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 4
Good For History Lovers
I doubt anyone who does not want to read a true historical book with a lot of facts but not as exciting as a non-fiction novel will enjoy this. I liked it because I learned a lot of things about New York that I was really surprised to read. Seems my beloved New York had a pretty bloody, violent history towards slaves and Catholics and some others the leaders and people did not like. I didn't realize the punishments of the day were just as bad, if not worse, than those of the Salem Witch hunt days. Beware, some of the content may turn your stomach.
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Reviewed in the United States on March 17, 2014
★★★★★ 5
Search for Scapegoats
Format: Hardcover
Jill Lepore's "New York Burning: Liberty, Slavery, and Conspiracy in Eighteenth-Century Manhattan" is a valuable and admirable examination of one of the darkest episodes in New York's history: the so-called slave rebellion of 1741 and the brutal vengeance that was extracted. Professor Lepore's painstaking research confronts the reader with a terrible conclusion: even the most respectable of people in society will consent to the deaths of human beings, based on even the tiniest shreds of evidence.
Focusing primarily on the actions of Daniel Horsmanden, the City's Recorder, Lepore provides the reader with a background on the attitudes of New York's whites toward their slaves. She makes clear that Gotham was neither the first nor only city to have witnessed slave uprisings. (It had suffered a similar uprising a couple of decades earlier.) But the events of 1741 were unique for several reasons:
--the shifting finger-pointing at various groups;
--the inconsistency of Mary Burton's testimony, which essentially was the case against several slaves;and
--Horsmanden's bizarre behavior toward Mary Burton.
Admittedly, I've only superficially studied this dark time in New York's history, so I was shocked to learn that there were actually several "conspiracies": the Negro Plot, Hughson's Plot, the Spanish Plot, the Roman Plot, etc. Each plot was hatched depending on who confessed to what. Worst of all, the white population of New York--fueled by racism, xenophobia, paranoia, and, not the least of all, bloodlust--went right along with it. And, with the exception of an intriguing anonymous letter from Massachussetts, it seems the rest of the colonies went along with it, too. While Horsmanden is just short of villified in this book, he is not alone in his culpability.
Professor Lapore's "New York Burning" will disturb many readers. The accounts of the slaves and the few whites burning, hanging, begging, and praying are graphic and heartbreaking. Still, this in an incredibly important book for anyone interested in the history of our nation and/or the all-too-tragic fragility of race relations in America. For this, Professor Lapore deserves our appreciation
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Reviewed in the United States on June 8, 2006
★★★★★ 5
Spectacular Albeit Unknown History of Race Relations
Format: Hardcover
This is a great piece of historiography about something few know about at all --- slavery in New York City in the 18th century. How about a slave "rebellion" in New York City, how about more people burned at the stake than in the Salem witchcraft trials, how about dark byways and highways of old New York, barely transformed from its days as New Amsterdam, dark plots in dank places, shrill frightened tyrants overreacting with bloody retribution, burned ruins of an early African American village in Central Park?
One cannot make up this stuff, it is too real so it must be history at its best.
And written by one of our premier authors of history, a woman who makes our history live in The New Yorker to the acclaim of many, and yet whose best book, this one, is still too little known.
If you appreciate Harry Truman's remark that the only new thing under the Sun is the history you haven't read, then this is one to curl up with and marvel at; a great way to spend a rainy day or a dark night.
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Reviewed in the United States on January 22, 2010
★★★★★ 4
Good, but not great.
Format: Paperback
Kudos to Lepore for delving into an important, little known subject, which she does better than most historians. At times, however, I think she felt the need to put every little piece of information she got into the book. It was way too long. Some good research, but she has done better. Still, worth checking out. I like to think I know American history, but I know nothing about this awful chapter.
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Reviewed in the United States on April 1, 2019
★★★★★ 5
DAMN, this is a great book!
Format: Hardcover
All history books should be this detailed, this readable, this humane. Lepore knows how to write about a horrible, nearly forgotten episode in NYC history. Unlike many historians, she steps away from overt politics or raw emotion. She knows that this subject is too serious to be shouted. It is the rare history book that is packed with facts as well as knowledge.
I felt like Lepore was taking my hand and leading me through the smelly streets of lower Manhattan in 1741, like I could almost see the faces of...what were they, anyway? The victims of a horrible hoax? The demented planners of a plot to burn the city? Or something in between, where thieves can also be the keepers of ancient rites from a distant homeland, where the world is turned upside down?
I could go on and on, but just buy the book!
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Reviewed in the United States on May 20, 2008