Chandelier Dimensions: flush mount base diameter 20in, fully assembled height 87in, this crystal raindrop chandelier for high ceiling is suitable for high ceilings between 17ft and 20ft. High Quality Material: Instead of any acrylics, this crystal raindrop chandelier applies high quality K9 crystal beads. The mounting base of this chandelier for stairway high ceiling and the strings are made of stainless steel to maintain firm and enjoy a long lifetime. About the Bulbs: This foyer chandelier for entryway high ceiling requires 6 pieces of GU10 base type bulbs (light bulbs are not included in the package). It can work with halogen bulbs and LED bulbs, but keep in mind the bulb can not exceed 60 watt each and LED bulbs not exceed 9 watt each. Dimmable Chandelier: This high ceiling spiral chandelier can be dimmable when using dimmable bulbs and compatible dimmer switch (bulbs and dimmer switch are not included)