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LEDONNE SUP Electric Fin Underwater Thruster Electric Surfboard Electric Surf Fin Electric Fin Thruster for Surfboard Electric SUP Fin Kit

  • Based on 33 reviews
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Availability: 18 left in stock
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Arrives Sunday, Aug 9
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Color: e-fin EP18


Features

  • Our e-fin is ideal for long paddling, heavy-gear fishing, and harsh conditions, reducing fatigue for tourers, anglers, beginners, women, and seniors. It offers a more comfortable paddling experience for all skill levels. Enjoy smooth, safe and extended paddling every time
  • Go Further, Faster, and More Fun: Reach a top speed of 8 km/h in ideal conditions and transform your SUP into a long-range cruiser. This e-fin delivers reliable performance in both fresh and saltwater. Engineered with fluid dynamics optimization tested by the Chinese Academy of Sciences, it effectively assists your paddling against headwinds, waves, tides, and currents, ensuring a smoother, safer ride that lets you focus on the scenery. Need exercise? Simply turn it off and paddle manually
  • Easy to Install & Use and Lightweight: Setup is fast, just like sliding a fin into fin box and then put the battery box on the SUP. Pls see the video. Available in Normal (D), Sports (S), and Reverse (R) modes, which helps clean seaweed etc. clogged into propeller, all controlled by a waterproof watch with replaceable CR2032 battery. Exercise or relax, just on your smart watch! At just 6kg, its light and easy to transport and store
  • Usage Tips: Please charge the battery every 3-6 months, which takes max 4 hours. Run the e-fin in freshwater after use in saltwater. Avoid obstacles esp. underwater to protect the efin. Our support team is available 7*24. Elevate water sports experience dramatically with our SUP BOOSTER Electric Fin since 2021, similar to an e-bike. You can still exercise with our e-fin while cruising further, faster, and having more fun in our great nature

Description

Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store LEDONNE- Professional supplier of water sports supplies. LEDONNE has been committed to providing the highest quality water sports products for years and has been the No.1 maker of max 15k paddles, fins and pumps per day. We have been supplying many well-known brands in EU and US, sports supermarkets and many brands on Amazon. Our annual output exceeds 3 million sets. We have absolute confidence in the quality of our products! Great for our SUP players, upto 8km/hr, Assist us paddle much faster & farther. And let's overcome headwind, wave or countercurrent for much nicer experience! Boost your SUP with extended distance and reliable return support—so you can explore freely without worrying about the way back. As outdoor sports enthusiasts, especially fans of paddle boarding, we eagerly developed the Electric Fin (eFin). This innovative device serves as both a 9-inch fin and a powerful booster for paddle boards. Much like an e-bike, our eFin enhances your paddling experience, making it easier, extending your cruising time, and amplifying the fun, all while allowing you to stay active anytime, anywhere. In Drive Mode (D Mode), the lithium battery powers the eFin for up to 5 hours. In Sports Mode (S Mode), it lasts up to 2 hours. These extended operating hours enable paddlers to travel longer distances, relax, take breaks, or capture videos and photos, all while cruising at speeds of up to 8 km/h. Essentially, it transforms your paddle board or kayak into an affordable mini electric yacht. Our eFin excels in challenging conditions like waves, tides, or headwinds. Personally, my EF18C eFin was invaluable in helping me navigate back to shore against a falling tide in Victoria, Canada. Tested in lakes, rivers, and oceans across the EU, US, Canada, Australia, and China, our eFins perform reliably in all seasons. Key components, including the battery box, controller, and emergency switch, are designed to float, ensuring safety and convenience. With these features, the eFin greatly enhances the water travel experience. We've enjoyed smooth sunset cruises in regions with numerous islets and embarked on island-hopping adventures, camping on different islets each night. One unforgettable experience was off the waters of Victoria, Canada, where curious seals from the Chatham Islands followed my paddle board, popping up intermittently until I paddled far away. Once you try it, you'll fall in love with cruising the water amidst the beauty of nature. As passionate outdoor enthusiasts, we continuously seek ways to merge our work and hobbies to provide more enjoyment for fellow nature lovers. Before the eFin, we developed e-pumps for inflatable boats, tents, mattresses, docks, and SUP paddle boards. Now, we are focused on creating even more powerful boosters for small watercraft. 1. After using the efin in sea or salt water, always rinse and run it in fresh water immediately to prevent corrosion. 2. Charge the lithium battery every 3-6 months to maintain its health and longevity. 3. Store the emergency switch and watch in the waterproof compartment of the battery, as each watch is paired with a specific battery box. 4. Secure the small black pin through the universal adapter until you hear a click to prevent the efin from being lost in the water. 5. Ensure the power cord is fully connected to the battery box until the connector self-locks to prevent water from entering the socket. 6. Keep the charging port dry and always replace the rubber cover after use. 7. Attach the red emergency switch cord to the foot leash to prevent the SUP from drifting away if you fall into the water. 8. Start the efin in areas with minimal weeds to avoid entanglement. 9. Use reverse mode to clear weeds or debris from the propeller. 10. Use reverse mode to change direction as desired. 11. Avoid underwater obstacles to prevent damage to the efin.

Item Package Dimensions L x W x H: ‎21.7 x 13.5 x 9.5 inches


Package Weight: ‎7.76 kg


Brand Name: ‎LEDONNE


Color: ‎e-fin EP18


Manufacturer: ‎LEDONNE


Part Number: ‎e-fin EP18


Date First Available: October 21, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Aug 9

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Great fins!
Color: e-fin EP18
We absolutely love these electric fins! I purchased 2 of them in August 2024. We have used them on fresh and salt water. The batteries last as advertised. We recently used them on the ocean in lots of floating seaweed and shallow areas of the Florida Keys. No problems. Used reverse to clear seaweed when needed but never got clogged. Traveled 8 miles on a paddleboard in breezy, choppy conditions, against tide. Battery lasted 4.5 hours! During storage over the winter I charged the batteries a few times. When we went to use them last week the remote batteries were dead. I was able to pry it open and replace the batteries but it didn’t look like they were made to be opened and wouldn’t snap closed again so I used electrical tape to seal them closed again. Worked fine. I don’t see a way to order extra remotes but would like to buy some extras. It looks like this product is unavailable at this time. I hope they restock. Great product. ... show more
Reviewed in the United States on April 13, 2025 by Scott

  • Game-Changing Thruster That Revolutionizes Paddleboarding
Color: e-fin EP18
This LEDONNE SUP Electric Fin Underwater Thruster is a game-changer for paddleboarding enthusiasts! I was amazed by how easy it is to install and use - it fits perfectly on my paddleboard and gives me that extra boost when I need it most. The battery life exceeds expectations, lasting through my entire day on the water. The underwater thruster provides consistent power without being too noisy or disruptive to the natural paddleboarding experience. I especially love how it helps when paddling against currents or when my arms get tired during longer journeys. The design is sleek and doesn't add much weight or drag to my board. The waterproof construction feels very durable and well-made. Overall, this is a must-have accessory that has completely transformed my SUP adventures and opened up new possibilities for exploration! ... show more
Reviewed in the United States on May 10, 2025 by SIMPLE.CLEAN.

  • As Advertised. Works Amazing.
Color: e-fin EP18
Kind of a review, but also a question. First, I love this motor. I live in an area where the currents can be quite strong and this is a HUGE equalizer. Makes paddling around a breeze. The only problem I had with the "universal" adapter is that it's a little wide for my paddle board (Niphean Inflatable.) I had to simply sand down the edges and now it fits fine. I've only used it four times, but so far the battery is very long lasting and works great!...My second part is more of a question. I was thinking about getting a second for my other paddleboard. Has anyone out there purchased two? Any conflicts in frequency between the two controllers? I'd hate for the paddler next to me starting/stopping my motor:) ... show more
Reviewed in the United States on July 15, 2026 by Darrin Reda

  • superb product
Color: e-fin EP18
This is a second unit for my wife. It is a perfect combination with the battery pack and control. I originally built my own battery setup for my kayak and your product is far superior, lighter and lasts longer..
Reviewed in the United States on May 16, 2026 by Raymond D Rawson

  • Fin adapter is poor quality, buy extras you’ll need them.
Color: e-fin EP18
The fin itself is nice but the adapter is made of poor quality and shattered when first used.
Reviewed in the United States on December 25, 2025 by Jude Loiselle

  • Exactly what we needed
Color: e-fin EP18
Got it for my spouse so she doesn't feel like she has to exhaust herself just to keep up with me and I don't have to remind myself to slow down. I was a bit sceptical of the device and did not have high expectations at first. I was pleased to learn that it works as advertised. Environment: we use our SUPs on a local river with very slow flow of water during summer months. There are weeds and occasionally they will get stuck in the propeller housing. If that happens stop the engine, pull out fail-safe so it doesn't accidentally starts and have your partner reach under and clear weeds out. You can do it by yourself but with the battery pack obstructing you might have difficulty doing it yourself. Set up: putting everything together is easy, but it helps if you have a partner to help carry the device, battery, attachments, as well as the board and the paddle. The remote and the device sync immediately and work very well to control the motor. Tips: get yourself one of those soft African weaved baskets so that you can carry all of the stuff and then keep the basket on your SUP, attached. Speed and battery: we were able to get almost 2 hours going 5mph or 7.5kmh on high setting. This is definitely fast enough for my spouse to keep up with me and even wear me out, going at full speed without the motor for this long. We did not run out of battery during the two hour sprint. According to the instructions we could do 5 hours on low speed, but we haven't try that yet. Battery charge time is as advertised, under 4 hours. Experience: my spouse really enjoyed it and felt like she could focus on the nature, sky, birds and enjoy the SUP ride instead of catching up with me. She went with me several times much further than we would typically go together. As for me, well, I just enjoyed watching her effortlessly go right next to me with a smile while I am "working out" on my SUP without the motor. A few times during our rides the high speed mode changed to low speed automatically, but every time this was due to a leaf or a weed getting stuck inside the motor. I hope it keeps working as it goes. One thing that I think they could improve is to add some kind of battery gauge to know how much juice is left. ... show more
Reviewed in the United States on July 26, 2025 by JeRom

  • Great Help to get you there faster and easier!
Color: e-fin EP18
Great Electric Fin Motor GOOD: On D it pushes my inflatable Paddle North XL kayak 2.5 mph and on S it goes 3.1 mph. Not too bad for a large kayak. I have run it for 1/2 hr intervals to my fishing spot and back. And for short periods in between. I’ve estimated that I have only run down the battery 1/4. So range seems to be very good. TO KNOW: It should be considered an assist motor. It needs help paddling to keep it straight especially if wind is over 10mph. If there is a lot of ocean weeds it will get clogged. Reverse is handy to help in clogging the prop. But one time I had to disassemble prop to in clog. But I do consider this a good purchase to help me get further faster and easier. Thanks P.S. customer service is Excellent! ... show more
Reviewed in the United States on July 16, 2026 by Xcountry rider

  • Great product but needs better support!
Color: e-fin EP18
I must rewrite my review for the product and their costumer service. After two months of using it,I love the product, it truly made my paddling, enjoyable and efficient as well as effortless! Their customer service was very good in reaching out and helping me to replace my remote control. I would definitely buy again from them. Highly recommended.! ... show more
Reviewed in the United States on November 9, 2025 by Wilma Wu

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