--- product_id: 3590345 title: "4M Green Science Potato Clock" brand: "4m" price: "€ 47.00" currency: EUR in_stock: true reviews_count: 13 category: "4 M" url: https://www.desertcart.es/products/3590345-4m-green-science-potato-clock store_origin: ES region: Spain --- # Digital clock included No batteries required Powers clock with 2 potatoes 4M Green Science Potato Clock **Brand:** 4m **Price:** € 47.00 **Availability:** ✅ In Stock ## Summary > 🥔⏰ Power up your STEM game with spud-powered innovation! ## Quick Answers - **What is this?** 4M Green Science Potato Clock by 4m - **How much does it cost?** € 47.00 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/3590345-4m-green-science-potato-clock) ## 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 - • **Complete DIY Kit:** Includes digital clock, wires, prongs, and clear instructions—just add potatoes and imagination. - • **Proud Maker Moment:** Watch your child’s confidence soar as they build and power their own working clock. - • **Green Energy in Action:** Harness the power of everyday spuds to run a real digital clock—no batteries needed! - • **STEM Learning Made Fun:** Engage young minds with hands-on assembly that sparks curiosity in science and engineering. - • **Eco-Friendly Innovation:** Teach kids the importance of sustainable energy with a zero-carbon footprint project. ## Overview The 4M Potato Clock DIY Kit transforms two ordinary potatoes into a sustainable power source for a digital clock, offering kids a hands-on STEM experience that teaches green energy principles without batteries. Complete with all necessary components and easy-to-follow instructions, this eco-friendly educational toy inspires creativity and environmental awareness in young science enthusiasts. ## Description Product Description The 4M Potato Clock teaches young minds the value of green energy in an illuminating way. The Potato Clock uses a pair of ordinary spuds to power a digital clock. This kit includes a digital clock, wires and prongs; two potatoes are all that's needed to create a working clock. This kit is ideal for young science enthusiasts, and offers a valuable lesson on the transformative power of green science. Detailed assembly instructions included. No batteries required. From the Manufacturer You may know potatoes as a good source of potassium, but did you know they can be used to power an alarm clock? This kit contains a digital clock, instructions and everything you need (minus the spuds) to run it. Review: Fun and easy to assemble with my child - A lot of fun to assemble with my kid, and watch the robot move across the table. Recently my daughter has become interested in robots. She'll use a robotic voice to say "I am a robot" and walks around very stiffly. This kit was fun for her to open and help with some of the parts, She's not yet 8 but she was able to help with a few of the steps. I ended up having 1 extra screw, but the instructions only use 4 of the 5. I am using these batteries (only need 1 AAA) desertcartBasics AAA Performance Alkaline Batteries for this kit. The robot isn't too good with corners of square tables, but does just fine along the straight edges. This is our first 4M Science Kit, but have already ordered 4M KidzLabs Robo Bug Mecho Motorized Kit which looks easier to build and better for a younger child to build. Review: Well worth the price we paid. - My 9-year-old and I built this together this morning. She did most of the work, while I did most of the reading and showed her how to identify parts using the diagram. Frankly, I felt a tad overwhelmed when she first opened the instructions, so I said we might have to wait for Dad to come help. Then my younger son said “Yeah, you’re probably going to have to wait for dad to build something like that,” to which I replied “No, we can do it, we just need to take it step by step.” Truly, once we looked over the peices and diagram, the instructions were easier to follow than I thought. Neither my daughter or I had put something like this together before. Our robot (which she named “Scooter”) turned out great. My daughter was thrilled and very proud of herself. A priceless experience. I will say Scooter does a good job detecting the edge but does fall off the table. You have to follow the directions about placing it slightly diagonal to the edge from the center of the table. When it falls some peices fall off, but she just puts it back together again. ## Features - The Potato Clock uses a pair of ordinary spuds to power a digital clock. - This kit includes a digital clock, wires and prongs; two potatoes are all that's needed to create a working clock. - This kit is ideal for young science enthusiasts, and offers a valuable lesson on the transformative power of green science. - Detailed assembly instructions included. - No batteries required. - Challenge your child's imagination with 4M toys and kits. - 4M educational toys cover a wide range of educational subjects and include science kits, arts and crafts kits, robotics kits, and more. - 4M offers a wide range of toys and kits to let you build a clock, crochet a placemat, or turn your room into a planetarium--all in the name of making learning fun. - This kit contains a digital clock, and the instructions and everything you need (minus the spuds) to run it - Does not include potatoes - Watch your child's delight and sense of accomplishment with the clock they create - Turn the kids onto the notion of leaving a smaller carbon footprint ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001T8OFQM | | Age Range Description | Kid | | Best Sellers Rank | #134,305 in Toys & Games ( See Top 100 in Toys & Games ) #1,598 in Educational Science Kits | | Brand Name | 4M | | Customer Reviews | 4.4 out of 5 stars 1,518 Reviews | | Educational Objective | STEM | | Global Trade Identification Number | 00085761090811 | | Included Components | digital clock with wires, pots, cooper and zinc strips, connecting wire, transparent tapes | | Is Assembly Required | Yes | | Item Dimensions | 4 x 3.25 x 2.5 inches | | Item Part Number | 4568 | | Item Type Name | Potato Clock Kit | | Item Weight | 0.01 Ounces | | Manufacturer | Toysmith | | Manufacturer Maximum Age (MONTHS) | 180.0 | | Manufacturer Minimum Age (MONTHS) | 96.0 | | Manufacturer Part Number | 4568 | | Manufacturer Warranty Description | 33 Day Warranty Against Manufacturer Defects | | Material Type | Potato | | Model Number | 00-03275 | | Set Name | 4M Potato Clock | | Size | original | | Sub Brand | (-) | | Theme | STEAM | | UPC | 085761090811 | | Unit Count | 1.0 Count | ## Images ![4M Green Science Potato Clock - Image 1](https://m.media-amazon.com/images/I/81LacRwe+vL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Wouldn't this solve the world energy crisis?** A: You may want to take a look at this - the idea may work for developing countries. http://www.smithsonianmag.com/innovation/a-potato-battery-can-light-up-a-room-for-over-a-month-180948260/?no-ist **Q: Is this an alarm clock, or is it just for timekeeping?** A: Just a clock. Not alarm. **Q: How long does it run on the potatoes?** A: We had it for about a week and it ran strong. The potatoes started to look bad so we threw the whole thing out. I imagine it would run the clock until the potato went completely bad. **Q: Followed directions about setting time, but didn't work. Any hints?** A: Here are the instructions for setting the clock. These are provided with the kit as well. SETTING THE CLOCK 1. Setting the clock When all the metal plates are first inserted into the potatoes, the LED screen will light up and will show a static display of "12:00". Press A once, the clock will start working. You will see the two dots in the middle start flashing. Press B twice to obtain the set month mode, then press A to adjust to the right month. Press B to confirm and the display will switch to the set day mode. Press A to adjust to the right day. Press B to confirm and switch to the set hour mode. Press A to adjust to the right hour. Press B to confirm and switch to the set minute mode. Press A to adjust to the right minute and press B to confirm. After the minute is confirmed, press A once. The set time will be displayed. 2. Viewing the clock By default, the clock display shows the current time. To view the Date: Press A once. The clock display will resume showing the current time after 2 seconds. To view the seconds, press A twice. To resume the current time, press A again. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fun and easy to assemble with my child *by R***G on October 8, 2016* A lot of fun to assemble with my kid, and watch the robot move across the table. Recently my daughter has become interested in robots. She'll use a robotic voice to say "I am a robot" and walks around very stiffly. This kit was fun for her to open and help with some of the parts, She's not yet 8 but she was able to help with a few of the steps. I ended up having 1 extra screw, but the instructions only use 4 of the 5. I am using these batteries (only need 1 AAA) AmazonBasics AAA Performance Alkaline Batteries for this kit. The robot isn't too good with corners of square tables, but does just fine along the straight edges. This is our first 4M Science Kit, but have already ordered 4M KidzLabs Robo Bug Mecho Motorized Kit which looks easier to build and better for a younger child to build. ### ⭐⭐⭐⭐⭐ Well worth the price we paid. *by D***A on May 22, 2018* My 9-year-old and I built this together this morning. She did most of the work, while I did most of the reading and showed her how to identify parts using the diagram. Frankly, I felt a tad overwhelmed when she first opened the instructions, so I said we might have to wait for Dad to come help. Then my younger son said “Yeah, you’re probably going to have to wait for dad to build something like that,” to which I replied “No, we can do it, we just need to take it step by step.” Truly, once we looked over the peices and diagram, the instructions were easier to follow than I thought. Neither my daughter or I had put something like this together before. Our robot (which she named “Scooter”) turned out great. My daughter was thrilled and very proud of herself. A priceless experience. I will say Scooter does a good job detecting the edge but does fall off the table. You have to follow the directions about placing it slightly diagonal to the edge from the center of the table. When it falls some peices fall off, but she just puts it back together again. ### ⭐⭐⭐⭐⭐ Good fun and learning *by A***I on March 25, 2026* My son loved this! He had a blast using it. Instructions were easy to follow and complete. We had it on our counter for weeks and still Worked with new potatoes as needed. ## Frequently Bought Together - 4M Potato Clock DIY Green Science Chemistry Engineering Lab - STEM Toys Educational Gift for Kids & Teens, Girls & Boys, Brown - 4M Kidzlabs Lemon Powered Clock, Chemical Electrical Science Lab Experiment - STEM Toys Educational Gift for Kids & Teens, Girls & Boys 12 Count (Pack of 1) - Sntieecr Fruit Battery Science Experiment Kit with Instruction, Potato Science Educational Kit for School Science Project, Kids DIY STEM Lab Experiments --- ## 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.es/products/3590345-4m-green-science-potato-clock](https://www.desertcart.es/products/3590345-4m-green-science-potato-clock) --- *Product available on Desertcart Spain* *Store origin: ES* *Last updated: 2026-07-30*