The Hemisphere Pendant is constructed of double thick aluminum featuring a hammered interior finish that is polished adding not just a beautiful finish but also multiplying the lumen output. The outside features high polish enamel paint making it the ultimate reflective surface. Dimmable via Triac or electronic low voltage (ELV) dimming. Note: The 24in and 31in sizes are fitted with commercial grade LED and multi-volt input drivers that dim with both ELV and 0-10V functions.