Mimicking a pearl inside an oyster's shell, an opal glass orb is mounted to a handblown swirl glass fixture and secured to a brass-plated iron backplate. *This item is UL listed, meaning it has been tested and approved to meet the government-regulated safety standards for the USA. Use with electrical outlets 110-120v or lower, as anything higher can cause fire or injury. If you're purchasing this item for use outside of the United States, employ the adapter and voltage converter suited for your country.*