C-US certified. Dry rated. This product is made from Steel. Number of Bulbs: 1 Type of Bulbs: Medium Bulb Base: Medium This fixture is dimmable. Product Specification Sheet Featuring the latest LED technology called "Light Guide Plates" the "Palo Alto" collection is totally unique and simply cool. The clear plates on these models light up throughout. Many configurations available. Shown in Chrome and also available in Brushed Bronze.