I know of no rules other than zones as to how low a pendent can go, we don't have it any more, but for years mother had a raise and fall lamp over the dining table around 4.5 foot from floor at lowest point.
Clearly you don't want to walk into a lamp, but over a table nothing to stop it being set very low.
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!