Candle holders come in a variety of styles and designs and can be used for any number of purposes, be it functional or otherwise. Candle holders can be useful to have in the home for a number of reasons, with just a few being summarised below.candle holders were traditionally used to provide valuable light sources before the time of electricity. They can still be used for this purpose to this day, with candle holders being invaluable in the time of a power cut, for example. In this sense, candle holders are extremely functional and will often be a lot simpler in design when used for this purpose.