Most of chandeliers are classic styles, decorating residential home light.Most models the Arms quantities are 3 or 5 ( called 3P or 5P),but can be added or reduced as per customers request . also the arms style and glass diffuser type can easy to be changed into other models Color and finishing way of housing also can be changed easily. Most models can have a same style wall lamp with one or two heads ( called 1W or 2W )