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Description
grow light vs led daylight bulb SANSI 24W Grow Light Bulbs for Seeds and Greens, 300W Equivalent Full Spectrum Grow Lights with Optical Lens for High PPFD, Daylight Plant BulbsKey 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: PPFD: 227. 5 mol s @1FT: . Through the lens
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: PPFD:227.5 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 and durable; low IR, less heat radiation, avoiding close Distance exposure burns plants.
- GUARANTEES: ETL listed & CE certification, quality and safety verified, 5 years warranty.
Specification
Wattage: 24W
Bulb Base: E26/E27
Voltage: AC 120V/220V 60Hz
Shape: Reflector(R)
Connectivity Technology: Infrared
Controller Type: Push Button
Special Features: Full Spectrum
Replacement Wattage: 250W Incandescent Bulb
PPFD: 227.5μmol/s/㎡@1FT
Product Size: 3.06 x 3.06 x 4.6 inches
Weight: 11.3 ounces
Package Included
1* LED Grow Light Bulb
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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4.9 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 4
A great read
Format: Kindle
Great stories from the fifties that I did not know existed until I opened this book. I hope there are more stories to come.
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Reviewed in the United States on December 8, 2023
★★★★★ 5
Just for Fun
You can't help, in reading these stories, remarking on how comics (and popular culture in general) reflect what we want on our minds and how we want to feel about ourselves.
Superman today is intense. He fights apocalyptic battles, and he sometimes loses! There's a lot at stake -- everything, EVERYTHING, lies in the balance. Superman himself seems literaly beyond human. In order to live the life of challenges he faces, he must be beyond the concerns of everyday life -- he can't really share in the life that the rest of us live.
Superman in the fifties lived in a much more comfortable, stable world, and his own life was much more continuous with ours. In these stories, he discovers that he is not alone -- his long last pal, Krypto, shows up, and he discovers his cousin, Supergirl. He has girlfriends -- Lana Lang and Lois Lane compete for his attention (without a lot of the psychological anxiety that Superman will face in the future over his inability to live a normal life and raise a normal family).
The villains, like Lex Luthor, aren't even purely evil -- they have their limits. Bizarro is not evil at all, just . . . dumb and amusing so long as Superman can repair any damage he does.
It's a little bit trivial to point out how comics reflect cultural reality, but . . . they do. It's fun to revisit the fifties here -- i suspect it's not so much an innocent age as one in which the story we told ourselves about ourselves (as in our Superman comics) was focused where we wanted it to be focused -- family, friends, the pleasures of everyday life.
But, putting aside all the sociology and pretenses of cultural history, these stories are just fun to read. It's not the Superman we know now, it's just different, a change of pace, fun.
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Reviewed in the United States on September 28, 2013
★★★★★ 5
Fun Times
Format: Kindle
Best Collection from my youth. Although I was not born until 1957, my dad's first cousin was an avid DC Comics collector, and these 1950s stories were the bulk of my experience of Superman during my 1960s childhood. Contrast the fight against fellow survivors of Krypton in this volume with that in Man of Steel. Here are the primary colors, can-do spirit, and ultimately optimistic view of science and the future so fondly remembered by older fans. In the end, there is probably no reconciling the angry countercultural gloom and discontent of modern comics with these gems of the past, but if as I you are sick to death of the politically correct socialism, these are a much needed breath of fresh air.
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Reviewed in the United States on May 30, 2021
★★★★★ 5
Superman stories from the fifties
Format: Paperback
A collection of Superman stories, I haven’t seen in decades. Wonderful.
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Reviewed in the United States on August 16, 2021
★★★★★ 5
Excellent superman action
Format: Paperback
Good stuff from end of the golden.age to silver age
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Reviewed in the United States on November 5, 2021