--- product_id: 40219785 title: "4M Green Science Wind Turbine" brand: "4m" price: "16 zł" currency: PLN in_stock: true reviews_count: 8 url: https://www.desertcart.pl/products/40219785-4m-green-science-wind-turbine store_origin: PL region: Poland --- # Generate electricity 13.3" blade span Harness wind power 4M Green Science Wind Turbine **Brand:** 4m **Price:** 16 zł **Availability:** ✅ In Stock ## Summary > 🌍 Power Up Your Curiosity! ## Quick Answers - **What is this?** 4M Green Science Wind Turbine by 4m - **How much does it cost?** 16 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/40219785-4m-green-science-wind-turbine) ## Best For - 4m enthusiasts ## Why This Product - Trusted 4m brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Design:** Perfectly sized at 8.5 x 9.5 x 2.5 inches for easy assembly. - • **DIY Experience:** Requires just a soda bottle and screwdriver for assembly. - • **STEM Learning Made Fun:** Engage young minds in physics and engineering. - • **Unleash Renewable Energy:** Transform wind into light with hands-on learning! - • **Age-Appropriate Adventure:** Ideal for ages 8 and up, fostering creativity and curiosity. ## Overview The 4M Wind Turbine Science Kit allows users to build their own wind turbine, demonstrating the principles of renewable energy in an engaging way. With a blade span of 13.3 inches, this compact kit is perfect for educational fun, requiring minimal additional materials for assembly. ## Description Toy smith's mission is to supply quality toys and gifts while delivering superior customer service with the core belief that children learn through play. With toy smith's wind turbine kit, you can harness the power of wind and convert it into electricity by building your own turbine. Watch the wind turbine capture the wind's energy and turn it into light. This kit will teach you how this vital renewable-energy technology works in a fun, recreational way. When completely assembled, The Blade has a span of 13.3 inches. The wind turbine kit from Toy Smith requires an empty two-liter soda bottle and a small Phillips head screwdriver (not included.) This item is recommended for ages eight years and up. ## Features - With 4M wind turbine kit, you can harness the power of wind and convert it into electricity by building your own turbine. - Watch the wind turbine capture the wind's energy and turn it into light. - This kit will teach you how this vital renewable-energy technology works in a fun, recreational way. When completely assembled, The blade has a span of 13.3 inches. - The wind turbine kit from Toy Smith requires an empty two-liter soda bottle and a small Phillips head screwdriver (not included.) - This item is recommended for ages eight years and up. ## Technical Specifications | Specification | Value | |---------------|-------| | Theme | Physics | | Size | Small | | Item Dimensions | 8.5 x 9.5 x 2.5 inches | ## Images ![4M Green Science Wind Turbine - Image 1](https://m.media-amazon.com/images/I/71Gan-36UfL.jpg) ![4M Green Science Wind Turbine - Image 2](https://m.media-amazon.com/images/I/51Pv5ZO4hyL.jpg) ![4M Green Science Wind Turbine - Image 3](https://m.media-amazon.com/images/I/51hNEbff7+L.jpg) ![4M Green Science Wind Turbine - Image 4](https://m.media-amazon.com/images/I/71OJyJLKECL.jpg) ![4M Green Science Wind Turbine - Image 5](https://m.media-amazon.com/images/I/61wpmX+S-yL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: What kind of functions develop this robot? What does it do?** A: It goes forward. That is it. It took my son and I about 10 minutes to build it, and it ran for about 30 minutes before the battery need to be cleaned, and rebuilt. **Q: How many watts is the LED lightbulb?** A: The power depends how fast you spin the windmill.The forward voltage drop of an LED is typically 2 to 3 V. Let's say 2.5V.A current of 20 mA (0.02A) will produce a bright light. That's probably close to what you get with a fairly strong wind turning your windmill.The power dissipated in the LED in this case is 2.5 x 0.02 = 0.05W = 50 mW. **Q: Is included the elements, for example charcoal, aluminium or salt? And is included some pieces of science kit as tube, ect?** A: It a simple kit, included small slides aluminum, carbon, works fine but is small, from kids 4 old years. Needs salt and water not included in the box. **Q: Does this only work once? My son can't get it to go a second time. Wondering what to do.** A: It will work multiple times. Make sure after each use to clean the battery parts with water and allow to dry before reassembling ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works well but smaller scale *by H***H on March 17, 2019* The media could not be loaded. We have tested this product with both the suggested dirty water and water colored with food coloring and it worked on both cases. It should be noted however that the filtering materials are vert small quantities, so using a big amount of water dirt or colors will make it less efficient faster. I would suggest to do the test with small amounts, I think 50 ml is more the enough to demonstrate the principle. For the dyed water I ended up using only 20 ml.My daughter used it for her science project and it was very fun for her to do and she assemble it herself with my guidance to explain the instructions. She is first grade so I do not think it is very challenging bu fun and educating to observe.I added a video of the assembly and the final product and function. I would suggest to use a heavy glass container as a collector as they suggested because it was too flimsy when my daughter used a plastic cup and needed to add a support cup as seen in the end of the video. ### ⭐⭐⭐⭐⭐ Worked well *by C***R on May 4, 2025* Arrived when expected. Easy to assemble. Worked as described. Reasonable price. ### ⭐⭐⭐⭐ 2 things to watch out for during assembly to make it work great! *by H***R on January 22, 2018* I received this today in our RND Lab and assembled it right away. Had 2 issues that once corrected, the unit works just fine.1st, they provide a detailed instruction sheet and it is simple to follow. They "clearly" show the RED wire at the bottom right rear and the BLACK on the other terminal. After assembly the light would not light up. As an engineer, I immediately started trouble shooting and found that if it was spun backwards the LED would light up. Of course being thorough (they recommend twisting the wires which I just can't live with), had to "de-solder" and then re solder the wires to the opposite terminals. Using our shop air compressor system and 40 PSI the LED lit very brightly.2nd, the bottle cap adapter that they recommend adding oil to is molded with too high of a tolerance. To fix this problem, I sanded the very top edge until it was smooth (there is a very definite ridge ring that can be felt around it that is unnecessary). After that it easily spun around as it should.I've added a picture showing the 2 steps above.So, in the end, definitely an excellent product for learning and and the price is very reasonable. If it hadn't been for the extra work it would have been given it all 5 stars. ## Frequently Bought Together - 4M Wind Turbine Science Kit, Green Science Small - Thames & Kosmos Wind Power V4.0 STEM Experiment Kit | Build a 3ft Wind Turbine to Generate Electricity | Learn About Renewable Energy & Power a Small Model Car | Weatherproof for Outdoor Use - Thames & Kosmos Hydropower Science Kit | 12 Stem Experiments | Learn About Alternative & Renewable Energy, Environmental Science | Parents' Choice Recommended Award Winner --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/40219785-4m-green-science-wind-turbine](https://www.desertcart.pl/products/40219785-4m-green-science-wind-turbine) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-22*