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.