4 in 1 Solar Power & Electric Motor STEM Kits,Science Experiment Projects for Kids Beginners,Electronic Assembly Solar Powered Toy Kit,DIY Educational Engineering Experiments for Boys and Girls

Great

Bought to assist for my son’s science fair project. We put together a battery powered car and a solar powered. Pretty easy to assemble and cars worked great. Not a ton of instruction for all of the types of cars you can build with the kit.

Great item. Delivered on time

Es un recurso muy chulo aunque difícil de asemblar bien para que funcione correctamente

Fun kit

I wasn’t sure what to expect considering the mixed reviews, but I was really impressed. Everything worked great including the solar panel pieces. My children play with two that are battery operated, and while I do stress the importance of being careful with them, the car and plane have held up remarkably well. The instructions were very clear and we followed them carefully in assembly and we love the result. I would describe all of them as delicate, but I felt like they were a great educational tool and my children love them.

I bought a few of these kits for school. They are very easy to build with exception of how tiny the screws are and getting them started. It will quickly frustrate impatient kids. The included screw drivers are a little magnetic, but not strong enough to adequately hold the screws. Also, the battery packs are interchangeable with the solar cells so you can easily switch them out for indoor/outdoor use. Just be careful with the “airplane”. The propeller is a little sharp and spins at a high rpm. The other propellers used on the wind mill and fan car don’t have this problem. The important thing for me was everything in the box worked and the directions, while not in depth were able to be followed.

Purchased for my son to build and present in class for his school science project. I helped him build the 4 items and found that the solar cells dont work. We plugged the motor into the battery back used by the engine and the fan powered car and the motor's all work. I took the solar cells outside in Arizona and still does not provide enough power (if its providing any) to the motor to spin. i was expecting it to spin slowly at least so he can showcase "Solar Energy" but it does not. Cant return since i threw out the original packaging. I would not recommend this.