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Gear (reduction ) motor,made in Shenzheng,China,pretty good quality,Running a speed at 60rpm.All you need to do is connect the postive and negative pole-pin,simple enough for beginners.
Can i change reduction ratio. I need motor with RPM level at ~150-250.
Sorry, we only the distributor for this product, what you need is another motor. If you really interest in it , hope you could send your requirement to our Wish page(http://www.seeedstudio.com/wish),we will consider your requirement.