| Material | Ceramic, Polycarbonate |
|---|---|
| Light Source Type | LED |
| Power Source | Corded Electric |
| Brand | SANSI |
| Voltage | 120V for US/CA 220V for EU/UK |
| Brightness | 4000 Lumen |
| Color Temperature | 4000 Kelvin |
| Specification Met | ETL |
| Product Dimensions | 8.46"L x 7.56"W x 5.51"H |
| Manufacturer | Pujiang Yuansheng Electronic Commerce Co., Ltd. |
| Part Number | C21GL-GE26-10W |
| Item Weight | 3.09 pounds |
| Country of Origin | China |
| Item model number | C21GL-GE26-10W |
| Item Package Quantity | 1 |
| Included Components | 10W Grow Light x4 |
| Wattage | 40 watts |
Pay in installments of $6.68 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 2 - Jul 7
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
4 bulb grow light 40W Adjustable 4-Head Clip-on LED Grow Light with TimerAbout this item FULL SPECTRUM HIGH EFFICIENCY GROW LIGHTS: SANSI grow light emits all wavelengths from 380nm to 800nm just like natural sunlight. With white light efficient LED diodes and higher PAR output, grow lights greatly promote indoor growth by accelerating photosynthesis, which is 18 times higher than other brand, ideal for all growth stages and a variety of plants such as herbs, succulents, orchids, cherry tomatoes, monstera, etc. LIFETIME
About this item
- FULL SPECTRUM HIGH EFFICIENCY GROW LIGHTS: SANSI grow light emits all wavelengths from 380nm to 800nm - just like natural sunlight. With white light efficient LED diodes and higher PAR output, grow lights greatly promote indoor growth by accelerating photosynthesis, which is 18 times higher than other brand, ideal for all growth stages and a variety of plants such as herbs, succulents, orchids, cherry tomatoes, monstera, etc.
- LIFETIME REPLACEABLE BULBS & QUALITY GUARANTEES: Grow bulbs can be replaced, which facilitates customers to replace broken bulbs and avoids to repurchasing the whole grow light. Additionally, SANSI offers a whole-life free warranty for the bulb. ETL listed, and quality and safety verified. (Attention Please: The max safety wattage rating is 10W for each head). We have a professional service team that provides 7x24 online help. Please contact our team on Amazon Message if you met any Problems.
- AUTO ON/OFF TIMER: SANSI growing light offers an Auto on/off timer function with 3 options that are 4Hrs, 8Hrs and 12Hrs. It's based on a 24-hour cycle from when you set the timer. For example, when keeping power ON, if you select 8 Hrs, it will turn ON for 8 hours per 24 hours.
- ENERGY SAVING: This grow lights for indoor plants provide a bright light output of 4000LM. Save 90% on your electricity bill by using a high-lumen LED chip equivalent to a 600-watt traditional light bulb while consuming only 40 watts.
- PROFESSIONAL HIGH-EFFICIENCY SOLUTIONS FOR INDOOR PLANT GROWTH: SANSI offers a number of core patented technologies that provide more efficient and stable lighting, effectively help your beloved plants thrive, and support a variety of usage scenarios (desktop, plant stand, desk, and hanging), which can be flexible placement anywhere in your home or office.
Technical Details
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 987 reviews
Sort
Product Reviews
★★★★★ 4
Understanding AI prompts as a science
Format: Audiobook
Prompt engineering is the art and science of finding the right words to generate the right responses from artificial intelligence (AI). It's becoming a skill in-demand in today's workplaces. It's also becoming an essential skill for life. To understand prompt engineering, you must understand how AI tools understand their inputs. This book explains that to you in many forms.
It covers prompting as it intersects all the major AI disciplines, like general prompts (as in a ChatBot), fine-tuning, and retrieval-augmented generation (RAG). It also introduces how prompting intersects a couple of image-generation tools.
As a scientist, I appreciate the theoretical approach to these practical matters. Too many people are hacks at AI these days, and any technical understanding can rapidly advance an individual's effectiveness. Prompt engineering is often made fun of as a "soft" topic, but as this book demonstrates, it intersects all the major AI areas. Presumably less garbage in means less garbage out. This book shows how you can make that take place.
As typical for O'Reilly materials, this book appeals to people who desire an intermediate-to-advanced understanding of how AI works. It's not for the casual user. Anyone technical involved in professional knowledge generation using AI can benefit from understanding the dynamics "under the hood." It's a good, though perhaps not ground-breaking, textbook for those of us unable to take a class in the subject. Prompt engineering may be a soft topic to many, but books like this ground the field in the science that can make or break a digital or software product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 13, 2025
★★★★★ 5
Great book
Format: Paperback
Great book! It is helpful as I work towards my Masters of Science in Applied Artificial Intelligence
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 20, 2025
★★★★★ 5
Comprehensive Guide with Practical Insights
Format: Paperback
This is a solid book for understanding the art and science of working with LLMs and other generative AI models. I always struggled with getting the output I was looking for, and wasn't sure how best to "ask" the models for what I wanted. This book did a great job of laying out the strategies and practical guidance to craft the prompts. There were a lot of tips and tricks, but the overall understanding and framework around prompt engineering has been super useful.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 25, 2024
★★★★★ 5
A must read!
Format: Paperback
Hands down, the best book on prompt engineering and implementing LLMs. Really enjoyed Michael and James deep dive. Whether you're technical or not, this book is foundational to a deeper understanding in how to properly explore and implement LLMs.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 25, 2024
★★★★★ 4
Helpful for GPT/LangChain framework
Format: Paperback
I applaud the authors for putting forth a comprehensive introduction in a rapidly evolving space. I absorbed a lot, helpful as I was developing a prototype — using open source methods.
And that’s where I was disappointed. The LLM and examples are highly adapted to OpenAI’s GPT-x and the bulky LangChain framework, something not obvious until you dig in to the book. Sure, this may be where newbie demand was when the authors began writing. But as the open source models and OpenAI alternatives gain speed (e.g. Llama 3.1, Groq, etc.) this book may quickly need an updated and expanded version to stay relevant.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 7, 2024