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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
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Description
DIY Creative Salt Water Car Science KitDescription: Explore clean energy and hands on learning with the DIY Creative Salt Water Car Science Kit, designed to introduce children and students to basic science, engineering, and renewable energy concepts. This educational kit allows users to build and power a small car using salt water technology, creating a fun and interactive STEM learning experience. Perfect for schools, science projects, and DIY activities, the kit encourages creativity,
Description:
Explore clean energy and hands-on learning with the DIY Creative Salt Water Car Science Kit, designed to introduce children and students to basic science, engineering, and renewable energy concepts. This educational kit allows users to build and power a small car using salt water technology, creating a fun and interactive STEM learning experience.
Perfect for schools, science projects, and DIY activities, the kit encourages creativity, problem-solving, and practical experimentation. Its easy-to-assemble design makes it suitable for beginners and young learners interested in robotics and eco-friendly technology.
Built for educational entertainment, this salt water powered car kit combines science and fun in an engaging way for kids and hobbyists.
Key Features:
Type: DIY educational science kit
Function: Salt water powered car
Usage: STEM learning, science projects, DIY activities
Design: Easy assembly and hands-on experimentation
Application: Education, creativity, and renewable energy learning
Suitable For: Students, kids, hobbyists, and schools
Why Choose This Kit?
Fun and educational STEM experience
Introduces renewable energy concepts
Encourages creativity and problem-solving
Easy to build and use
Great for science projects and learning activities
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
4.4 ★★★★★
Based on 1120 reviews
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Product Reviews
★★★★★ 4
Not a great mop, but it is a great vacuum.
Color: Black01
The Roborock Q7 L5 has been a great addition to the cleaning arsenal of my home. I have a 1200sqft one story home with tile and laminate flooring, and it has essentially removed my need to vacuum every day, or even every week, and I have 6 cats. I have had it set to vacuum every night in the common areas of my home, and it is quiet enough that it does not disturb my husband and I when we are sleeping. I only have to empty it out once or twice a week.
You MUST make sure your common areas are cleaned up of debris on the floor, and to set no-go zones where you cannot clean up clutter on the floor. It WILL eat cords, shoestrings, animal toys, etc. It WILL get stuck under things, which are where no-go zones come into play.
It struggles with cleaning up litter, so I still have to sweep the floor around my cats litter boxes. However, it picks up the cat hair fairly well. It also crosses thresholds VERY well, and will vacuum my area rugs and shower mats that are not affixed to the floor with tape without sucking them up like a normal vacuum does.
Some complaints I do have with this model...
- It CANNOT be integrated into Home Assistant at this time, which was one of the things I was excited about. Something about a new firmware they started using that is not compatible with the integration starting around this model type. Unfortunate, but whatever.
- The mopping function leaves more to be desired. If you put water in the unit, it WILL leak, even if you don't have the mop mount installed or are mopping, so sometimes you end up with little water drips on the floor. I also find that it does not do a very good job at mopping at all, even with wetting the cloth first, but for tile and laminate flooring, dry mopping is fine, so I have been leaving the mop mount installed without mopping to pick up dirt and dust that the vacuum part misses.
- The filter was installed incorrectly from factory, and it took me a few weeks to realize that. I have no idea how much dust got sucked up into the motor, so definitely check that when you first get it.
- The mop cloth is poorly sewn. It maybe lasted two uses before it started falling apart. Fortunately, I sew, so it can be easily fixed, but I would have hoped that these would have been a little more high quality.
- Expect to buy more replacement parts. Especially mop cloths. You will need multiple mop cloths if you are using the roborock to mop with.
Overall though, most of my complaints are with the mopping function of this machine. Since I don't mop very often anyway, due to damaged laminate flooring, it works fine for me. Not having to vacuum the entire house every day, or sweeping the kitchen manually every time after I cook is a huge time saver. If you need a robot vacuum, and not a mop, I feel like the Roborock Q7 L5 is a great purchase.
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Reviewed in the United States on December 1, 2025
★★★★★ 5
Strong Vacuum Performance, Weak Mop Function
Color: Black01
The Roborock Q7 L5 delivers strong vacuum performance. The suction is powerful and picks up pet hair, dust, and debris with ease. Floors look clean after each run, and the dual anti‑tangle system helps keep the brush clear even in homes with heavy shedding.
Navigation is smooth and efficient. It moves around furniture accurately, avoids obstacles well, and returns to the dock reliably when it needs to recharge.
The mopping feature is quiet, which is a nice benefit. It operates with very low noise, but the cleaning action is minimal. The mop pad mostly drags behind the unit and offers only a light wipe, so it doesn’t replace a real mop.
The vacuum itself is louder, which is expected from a machine with strong suction. It offers different suction levels, so you can adjust the noise and power depending on the room or flooring.
What stands out:
Excellent suction power
Great at picking up pet hair
Smart obstacle avoidance
Quiet mop function
Multiple suction levels
Reliable self‑charging
What could improve:
Mop function is weak
Vacuum noise increases at higher suction levels
Overall, this is an excellent vacuum with strong cleaning performance and smart features. If vacuuming is your priority, it’s a great choice. The mop is more of a bonus than a true cleaning tool.
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Reviewed in the United States on January 23, 2026
★★★★★ 5
Huge Upgrade to my trusty V1 Robot
We've had one of the first model robot vacuums from the og manufacturer which has been a workhorse for us for years! It's the drunk uncle of robots though, no bells and whistles, just your basic robot that runs into everything but gets the job done in some random chaotic pattern. Seeing this on sale and finally just going for it to see how good newer models have gotten (no more separate virtual wall lazers, a nice easy to use app, no more bumping around clumsily!, and more). Well, long story short, they have gotten soooo much better and I'm incredibly glad I gave this one a try. It's is running flawlessly, cleans very well, i love the ease of the app and setting up no-go zones, and pretty much everything else has been an upgrade. Looking forward to many years of our new bot and a cleaner, less noisy, less drunk uncle of a bot around the house. (Don't worry, drunk uncle is still getting his time in down in the basement. He's old reliable at this point and will go as long as he wants to.) This is a great vac that performs wonderfully with all the functions and conveniences I need (i haven't tried the mopping function yet but didn't really buy it for that) at an incredible price point, esp when on sale. If you're looking to upgrade like I did, it's well worth it. If you're looking at your first robot and are unsure if it's something you really need.... trust me, get it. It will save you time, knock one thing off your million item to-do list, and will soon become something you are unsure why it took so long to try.
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Reviewed in the United States on April 26, 2025
★★★★★ 2
Updated Review: error code and quit working after only 3 weeks.
Update! I absolutely loved this vacuum.....for about 3 weeks. I ran it every day. I loved loved loved the mapping feature that allowed me to select which rooms of my house I wanted it to clean. It did a pretty good job and I was so happy with it. I took good care of it and cleaned the filter and emptied it often. It was great ...until it didn't work anymore. Fan error: error 155 called for me to factory reset the vacuum which I did 3 times but it still wouldn't go more than about 30 seconds before stopping and giving me the internal error code again. After researching the code (because the website and help book on the app don't list this code in their troubleshooting guide) apparently this is a common thing for this particular model (the Q5 pro) to do. And most of the time it isn't fixable. We were still within the time frame to return it through Amazon so we decided to do that rather than contact customer service in hopes that they might fix it but not and then not be able to return it anymore. Sadly I won't be buying this brand again for a while. My previous vacuum (roomba) lasted me 5 years and still works, just has old technology. I was really hoping for another vacuum with newer technology like house mapping to last me a long time as well. I most likely will be returning to the Roomba brand. Which is sad because this seemed like a great vacuum with great features for a good price. I hope roborock improves their models and fixes these error issues and maybe one day I'll give them a try again. Maybe.
Original review: I love this vacuum. I had another brand that was 5 year old technology and just caused more headache than help. This one is a huge improvement. I love how it initially mapped out my house and I was able to divide and name the rooms in the app. Now I can tell it to clean only certain rooms or the whole house and it does great and doing only the rooms I want it to do. I connected it to my Google speaker as well and now I can tell google to make my roborock clean my kitchen. I can also control it and monitor it from the app even when I'm not home. The mop feature isn't great. It really doesn't clean, more just puts water on the floor and leaves dirty streaks. But I didn't buy it for the mop function. If it does a great job vacuuming, which it does, I'm happy with it.
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Reviewed in the United States on January 6, 2025
★★★★★ 5
Robot Vacuum
Color: White
Our robot vacuum is called Mildred and she works fine.
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Reviewed in the United States on April 16, 2026