Gems of crystal in a sparkling ring are illuminated from an LED light source finished in warm brass. Supplied with 15' airplane wire for adjustable suspension installation. No bulb required with the built-in LED light strip; 40 watt, 3000K, CRI of 95, 1814 Lumens, 50,000 estimated hours of illumination, compatible with Lutron DVCL-153P dimmer.