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4M Solar Rover Kit

by 4M

List Price: $19.99
Price: $14.12 & FREE Shipping on orders over $35. Details
You Save: $5.87 (29%)
In Stock.
Ships from and sold by Amazon.com. Gift-wrap available.
  • Build this cool rover using the parts included and a soda can
  • Learn how sunlight is converted to energy
  • Detailed instructions included
  • Fun and educational
35 new from $9.99

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$14.12 & FREE Shipping on orders over $35. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

4M Solar Rover Kit + 4M Weather Station Kit + 4M Green Science Dynamo Torch
Price for all three: $34.81

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WARNING:
CHOKING HAZARD -- Small parts. Not for children under 3 yrs.

Product Description

Product Description

Build this cool rover using the parts provided and soda can. Learn how sunlight is converted to energy. Detailed instructions included in the Green Science Solar Rover kit. Featured on From the Set's "Ten Earth Day Fun Day Activities"

From the Manufacturer

Our 4M Solar Rover Kit is built by using the parts provided and a soda can. Learn how sunlight is converted to energy. Detailed instructions included. Award winning Green Science introduces kids to green concepts such as repurposing, upcycling and alternative energy.

Product Details

  • Product Dimensions: 9.5 x 2.5 x 8.5 inches ; 14.2 ounces
  • Shipping Weight: 9.6 ounces (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • Origin: China
  • ASIN: B003HE3DJQ
  • Item model number: 3782
  • Manufacturer recommended age: 8 - 15 years
  • Amazon Best Sellers Rank: #23,271 in Toys & Games (See Top 100 in Toys & Games)
  • Average Customer Review: 2.4 out of 5 stars  See all reviews (27 customer reviews)
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Customer Questions & Answers

Customer Reviews

2.4 out of 5 stars

Most Helpful Customer Reviews

27 of 34 people found the following review helpful By villegem on December 28, 2010
My son received this "green science" solar rover for Xmas.
This toy represents the perfect llustration of the green hype and its shameless promotion to young people. And THAT is the educational value of this toy!

1) The amount of plastic both in the box, in its packaging is quite impressive.
2) The photovoltaic cell offers about 220mV of electricity. It was fun to have my son cover and uncover the cell with his hand while the voltmeter was showing the voltage of the generated current.
3) The electrical motor was fine; I checked it with a used 1.5V battery
4) Once assembled the motor would not start. The cell did not generate enough power. Only under full light beaming directly over the cell would the engine start. Now let's wait for a bright summer sun with no clouds...

And all this came at great expenses of energy from China! Don't waste your time and money.
One can demonstrate the same solar energy photovoltaic cells through any hand calculator and at least you can USE the calculator!
Guess what is going in the recycle bin -not from its own power though-...

UPDATE: Finally a sunny day and yes O miracle the rover roved... The world is now saved... but oh no, a cloud...!
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10 of 12 people found the following review helpful By SteveFromChicago on December 22, 2011
I purchased this toy for my nephew as a Christmas present in 2011. After gift opening, this was the first toy he wanted to assemble and play with. He is 7 years old and had no trouble putting this toy together with very little assistance from me or the instructions. Once assembled, we took the toy over to a lamp to provide some light energy for the solar cell. The motor did not turn at all. Just like in a previous review, I removed the solar cell and shorted the motor wires across a 1.5v C cell and the motor whirled to life. The open circuit voltage of the solar cell was about 550 mv which is I would expect for a single solar cell. Once the solar cell was reconnected to the motor and placed under lamp light, the closed circuit voltage dropped to 007mv. The solar cell just does not have enough output to power this motor. DO NOT BUY THIS TOY FOR ANY SPECIAL LITTLE PEOPLE IN YOUR LIFE. You will be disappointed. --Steve
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8 of 9 people found the following review helpful By HomeEnergyLLC on September 19, 2011
Verified Purchase
Simply put, the solar cell never worked, no matter what I did. I hooked the motor up to a regular AA battery and it worked fine, so that leads me to believe it's just junk!
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1 of 1 people found the following review helpful By @LonestarCanuck on December 20, 2014
This item is between 3 and 5 stars:

Pros - cool kit/toy to teach my kids who love green energy about how things work (10 and 11).
Cons: - over packaged item, PV cell (the solar panel) is pretty weak even in Texas weather except on bright days

Solution: I had a few extra solar panels from other devices that broke (yes I always remove and keep the panels - they are good for 20+ years usually) and I replaced the original one with one about twice the size - 3v. it now works under most household lighting. Note you need to be able to tinker! I used a soldering iron, some plastic covered 22g wire to make a frame to hold the new cell.
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1 of 1 people found the following review helpful By J. M. on January 9, 2014
As others stated previously, the solar panel cannot move the motor, there's excess packaging and after the excitement of putting it together, having it fail to move is very frustrating for both adult and child.

To save the day, but lose the lesson, if you attach the wires to any 1.5v (AA) battery it will work well. If you attach a 9v, give it a long, clear path!

Save your money and the planet by buying something better.
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1 of 1 people found the following review helpful By Esse on July 29, 2013
My 6 year old son received this as a gift. He was so excited to build it with his grandpa. When the solar panel was hooked up, it did not work. Natural sun light did not even work. The gift was exchanged for a new one. The second time the solar panel did not work, either. It will run on the battery, but that defeats the purpose of the toy. It was a major disappointment.4M Solar Rover Kit
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1 of 1 people found the following review helpful By Susan P on March 24, 2014
This product was chosen for a science project for my 3rd graders and it did not work. Like other reviewers when we connected a battery to the motor it worked but the solar cell was not powerful enough to make the rover move.
Poorly designed and a waste of money - not to mention very disappointing for my twins. Don't buy!
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1 of 1 people found the following review helpful By Christina2506 on January 2, 2014
We were not even able to assemble the rover, as the screws that were supposed to fix the wires to the solar panel did not fit, and we could not make them slide into the slots no matter how hard we tried. All in all a big disappointment for our seven year old son, who received this as a present and was eager to assemble it.
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Most Recent Customer Reviews

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