Bulb Base：Classy stylish crystal ceiling light is compatible any E12 bulbs,5 bulbs is required(bulbs not included). It is also can be dimmable when you used a dimmable bulbs and compatible dimmer switch.you can enjoy bright light or calming dim light（This light fixture is black）. Chandelier Size: 29.92 inches diameter and 13.38 inches high. Unique Crystal Glass Design. This unique style chandelier light features crystal tube is shiny, crystal home decor.. Easy To Assemble: the chandelier need to assembly, crystal half assembled and it is easy installation, the direction is clear. （There is installation video on the page link of lamps for reference）