Sunnytech 1.25w 5v 250ma Mini Small Solar Panel Module DIY Polysilicon Solar Epoxy Cell Charger B019 - size: 4.57in*4.57in
Sunnytech 1.25w 5v 250ma Mini Small Solar Panel Module DIY Polysilicon Solar Epoxy Cell Charger B019 - size: 4.57in*4.57in
About this item
- DIY YOUR OWN MODEL----Build your own powered models, solar toys, solar lights, solar displays, charging small DC batteries. It can be used for teaching purpose. Many of our customers come from school, colleague, etc.
- BLOCKING DIODE INSTALLED ----A blocking diode installed already in the backside to protect the solar panel from over-charging and current backflow.
- HIGH QUALITY & EASY USE---- High quality epoxy resin, unique technology to make the components beautiful and strong, anti-wind and snow, increase the service life of solar panels. Color coded wires with alligator clips make working with it easy and fun. For those of you who want to connect more than one panel together, this panel has two soldered tabs for permanent connections.
- EDUCATION---- Solar panels are devices that absorb sunlight and convert solar radiation directly or indirectly into electricity through photoelectric or photochemical effects, it's perfect devices for science project.
- CONNECT SOLAR PANELS IN PARALLEL OR IN SERIES---- When the voltage of your solar panel doesn’t satisfy your storage battery, you can take two or more same solar panels together in series. Such as, two 5.5v solar panel connect together in series, so its voltage is 11V. When the voltage of solar panel satisfies your storage battery. In order to speed up the rate of charge, you can take two or more same solar panel together parallel connection
Overview
- Brand: Sunnytech
- Material: Polycrystalline Silicon
- Product Dimensions: 4.57"L x 4.57"W x 4.57"H
- Item Weight: 50 g
- Efficiency: High Efficiency
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Reviews
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Emily Carter — Seattle, Washington
The science kit was clearly organized and easy to follow. It made our weekend project feel enjoyable and gave us plenty of opportunities to explore each idea together.
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⭐⭐⭐⭐⭐
Daniel Brooks — Austin, Texas
I liked the variety of hands-on projects available at TinkerVanta. The kit we selected was engaging, practical, and well suited to a curious beginner.
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⭐⭐⭐⭐⭐
Lauren Mitchell — Denver, Colorado
The building project kept us interested from start to finish. The finished model was rewarding to complete, and the activity encouraged creative problem-solving along the way.
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⭐⭐⭐⭐⭐
Jason Reed — Portland, Oregon
Our electronics project was a fun introduction to circuits and basic engineering concepts. The hands-on format made the activity easier to understand and more memorable.
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FAQ
1. What types of products does TinkerVanta offer?
TinkerVanta offers science kits, engineering projects, robotics, electronics, building models, maker crafts, workshop supplies, and educational exploration activities for a variety of interests and skill levels.
2. Are your products suitable for all ages?
Recommended ages vary by product. Please review the age guidance, skill level, dimensions, included components, and safety information on each product page before ordering. Adult supervision may be required.
3. How do I choose the right kit?
Consider the user’s age, interests, experience, and preferred project type. Product descriptions provide information about contents, difficulty, assembly requirements, and recommended use to help you compare available options.
4. Are batteries, tools, or additional materials included?
Included components vary by product. Some projects may require batteries, household materials, tools, adhesives, or other supplies that are sold separately. Please check the individual product description before purchasing.
5. When will I receive my tracking number?
Tracking information is usually provided within 3–5 business days after an order is placed. During busy periods or when additional processing is needed, it may take up to 7–8 business days.
6. How long does delivery take after tracking is provided?
Delivery time depends on the carrier, destination, weather, and other transportation conditions. After tracking becomes available, delivery may require approximately 4–5 additional business days or longer in some circumstances.
7. Why is my tracking information not updating?
Carriers may need additional time to scan and update a shipment after the tracking number is created. Please allow a few business days for movement to appear. If there is still no update, contact us for assistance.
8. Can I change or cancel my order?
Contact us as soon as possible after placing your order. We will try to accommodate your request, but changes or cancellations cannot be guaranteed once processing or shipment preparation has begun.
9. What should I do if my order arrives damaged, defective, or incomplete?
Contact us promptly with your order number, a description of the issue, and clear photos of the product, packaging, and shipping label. We will review the information and explain the available resolution options.
10. How can I contact TinkerVanta?
Email us at zircorncirkne@gmail.com or call +1 (936) 260-5549. Please include your order number when contacting us about an existing purchase so we can assist you more efficiently.
Blog posts
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The Beginner’s Wiring Rescue: 7 Steps to Fix a ...
Learn how to troubleshoot common wiring mistakes in beginner robotics and STEM kits with a systematic, hands-on approach. Discover how to trace circuits, check connections, diagnose motors, and turn failed...
The Beginner’s Wiring Rescue: 7 Steps to Fix a ...
Learn how to troubleshoot common wiring mistakes in beginner robotics and STEM kits with a systematic, hands-on approach. Discover how to trace circuits, check connections, diagnose motors, and turn failed...
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Why Your Beginner Robot Won’t Move: 7 Wiring Mi...
Is your beginner robotics kit not working? Learn how to troubleshoot common wiring mistakes, check power and polarity, inspect motors, and turn robot failures into valuable STEM learning opportunities.
Why Your Beginner Robot Won’t Move: 7 Wiring Mi...
Is your beginner robotics kit not working? Learn how to troubleshoot common wiring mistakes, check power and polarity, inspect motors, and turn robot failures into valuable STEM learning opportunities.
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How to Fix Beginner Robotics Kit Wiring Mistake...
Learn how to troubleshoot beginner robotics kit wiring mistakes without rebuilding the entire project. Discover practical STEM troubleshooting techniques for motors, power connections, polarity, and DIY robots.
How to Fix Beginner Robotics Kit Wiring Mistake...
Learn how to troubleshoot beginner robotics kit wiring mistakes without rebuilding the entire project. Discover practical STEM troubleshooting techniques for motors, power connections, polarity, and DIY robots.

















