C-US certified. Damp rated. This product is made from Composite. Number of Bulbs: 1 Type of Bulbs: LED Bulb Base: Medium This fixture is dimmable. LED Color Temperature: 2700 / LED Color Rendering Index (CRI): 90 Product Specification Sheet The Optimist Table Lamp has pale blue tones running through its speckled glass. Sitting atop an optic crystal base, the light blue lamp is topped with a natural linen shade that brings added elemental style to the glass lamp.