I've got a little 20x to 40x scope with some led lights. It's about 5 inches tall with the base attached. It works great and was (if my memory is still working) about $12 dollars on Ebay. I have a couple of more that are more portable, one that goes all the way to 200x. I have a couple of USB 'scopes that go from 40x to 200x and one goes even to 800x; are USB powered with led lights. The 800x really magnifies coins! Each of these were about $30 apiece on Ebay. I also have a retractable-arm type light, from Harbor Freight, mounted on my desk with a magnifying glass in it with an incandescent light. It's amazing what you can find on the internet! No, none of these are 'precision' type instruments, but work quite well.