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Description
sansi grow light bulb led e27 SANSI BR30 24W LED Grow Light Bulb, Perfect for Home and Greenhouse. UK E27 / 3-packKey Features: Secondary Optical Design: PPF: 36. 2mol s, PPFD: 177. 06mol 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. 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
Key Features:
- Secondary Optical Design: PPF: 36.2μmol/s, PPFD: 177.06μmol/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.
- 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.
- 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 and 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:
Item Model Number: C21GL-CE26-24W
Wattage: 24W
Voltage: AC 120V 60Hz, 220V ship to EU/UK
Replacement Wattage: 300W Incandescent Bulb
Beam Angle: 60°
PPF: 36.2 μmol/s
Product Size: Φ110mm*H131mm
Weight: 0.616 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 7 reviews
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Product Reviews
★★★★★ 4
Unlocking Success Beyond Self-Reliance
Format: Kindle
Dan Sullivan’s book “Who Not How” is a transformative guide that redefines the way we approach challenges and goals. Rather than asking “How can I do this?” the book challenges readers to ask, “Who can help me achieve this?” This shift in thinking opens up the potential for exponential growth, efficiency, and success.
Sullivan’s core premise is that the path to achieving your ambitions isn’t about taking on everything yourself but rather identifying the right people who can help you get there. This insight is particularly valuable for those who find themselves caught in a cycle of overwork and frustration when trying to handle every aspect of their projects or responsibilities alone.
Although, the main idea of the book is inspiring and powerful, the book does come across as promotion of Sullivan’s Strategic Coach program, which might be off-putting for some readers.
While the book is relatively short, it still feels somewhat wordy and could have been more concise. Many chapters follow a predictable pattern: a story about Mr. X who faced a challenge, found a “Who,” achieved success, and then helped the “Who” in return. This repetition can make the narrative feel formulaic at times.
Additionally, there are numerous one-liners throughout the book that seem disconnected from the surrounding text. While these sentences are mostly quotable, their placement can feel abrupt and unrelated to the passage before or after.
Despite these critiques, the book is filled with examples that showcase how leaders and entrepreneurs have leveraged this mindset. By engaging with the right “Who,” you not only save time and energy but also unlock a level of creativity and collaboration that propels your goals further than you could imagine on your own.
For readers seeking to achieve more while doing less, Sullivan’s book is a great read. It offers a liberating perspective that not only boosts productivity but also enhances personal fulfillment by allowing you to focus on what you do best and rely on others for the rest.
I would rate it 4/5 for its mostly thought-provoking content.
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Reviewed in the United States on November 10, 2024
★★★★★ 5
The Goto Resource for every Leader
Format: Kindle
The title says it all — Who Not How — and the content brings it to life. At its core, this book reminds us that our greatest calling is rooted in relationships. It’s also where our greatest assets are found. We don’t need to do everything ourselves—we need Whos in our lives, and we need to be a Who in the lives of others. This is a must-have resource for every leader.
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Reviewed in the United States on July 30, 2025
★★★★★ 5
An important book to read, and whose concepts MUSTbe put into practice
Format: Kindle
As an admirer of the work that Dan Sullivan and Benjamin Hardy have done individually, I was sure that a collaboration, two “whos” getting together, would be a good hit. And a good it it is!
The issue with these kind of books is what happens immediately after one has finished reading them.
The issue is to put things into practice, and change the way we do things.
This requires thinking, and thinking is hard, and in most cases we do NOT dedicate time to thinking, so the concepts slide into the past, and no change happens.
Time for me, and everyone, to change this default state.
This review is just the start of a written reflection, a “thinking on paper” exercise, like my friend and great thinker Jean Moroney calls it.
For me, it’s time to shift to my journal.
For you, dear readers, it’s time to get this book and read it. Make Dan and Ben your “whos”. Now.
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Reviewed in the United States on January 4, 2021
★★★★★ 5
A must read
Format: Kindle
Every entrepreneur should read this book at the beginning of their journey. “Who Not How”, provides valuable insight needed to allow you to grow your business.
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Reviewed in the United States on January 20, 2026
★★★★★ 5
If you’re a solo, Who Not How is a must-read
Format: Kindle
If you’re starting out as a solo, whether you’re a writer a lawyer a consultant, or whatever, Who Not How may be the most important book you can read if you want to have both a successful business and a successful life. Here’s why I think that’s true.
Most people who go solo don’t start their business with bales of venture capital. Instead, we fund those first lean weeks or years with credit cards, second mortgages, and the forbearance of our friends. We’re lean by necessity.
Naturally, in the beginning, we do just about everything ourselves. That’s good and necessary, but it can create a bad habit that’s reinforced by society.
American culture lauds individual achievement. In school, we’re graded individually. The virtue of self-reliance is high on our list. The problem is that to grow and prosper we need to break that habit of “self-reliance at any price” and quit trying to do it all.
When we face a new challenge, the need for a new website, for example, we naturally ask, “how can I do this?” We spend time climbing a learning curve to get to an acceptable level of performance. Asking, “who could help me with this” or who can do this for me” can make our businesses more successful and our life more satisfying. Let me share two examples from my business.
I have a virtual assistant. Her name is Brenda, and she does a variety of administrative tasks that I used to do myself. She does them better, more consistently, and more efficiently than I would. And the fact that she does them frees me up to do the things I do best and contribute most to the success of my business.
Another example. For years I did my bookkeeping. I learned bookkeeping for the first job I got after I left the Marines. I did OK with a paper-based system. But I decided that I wanted to take advantage of what technology had made possible, so I bought QuickBooks. First, I tried to master it. The bookkeeping part wasn’t a problem. But learning about and implementing the automated functions of the program frustrated me.
When I realized what was happening, I engaged a QuickBooks consultant to help me set the program up and review my books every quarter. The result: I used to spend frustrating hours not getting things quite right. Now, I spend about 15 minutes a day and an hour at the end of the month on my accounting.
Both Brenda and my QuickBooks consultant do things that I’m capable of. But they do them better, and, because they do them, I have more time and bandwidth to spend on coaching people as they write their books. That’s what I’m good at and what I get paid for. And using others for those tasks frees up time for me to spend on recreation, recovery, and relationships. Those things make life sweet.
If you’re a solo, that’s why you should buy Who Not How, read it, and put it to work. I suggest you buy the audio version, even if you also buy a print or ebook version. The audio version has some interviews with Dan Sullivan that don’t appear in the other versions. They will add value to your experience.
In a Nutshell
If you’re a solo, buy Who Not How: The Formula to Achieve Bigger Goals Through Accelerating Teamwork by Dan Sullivan and Benjamin Hardy Then read it and put the book’s lessons to work.
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Reviewed in the United States on January 25, 2022
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