A 3" aperture specification grade adjustable housing platform that accepts 60W maximum line voltage tungsten-halogen lamps. Suitable for 2x10 residential framing or commercial installation. The platform is airtight to prevent energy loss, room drafts, dust marks on ceilings and reduce sound transmission. Units may be used in direct contact with insulation and building products. A complete fixture requires two components; a P3120 housing platform and a 3" optical element. Elements may be changed after installation to provide a variety of distributions. Specifications Manufacturer Cooper SKU P3120-E3P20BB Technology Halogen Regulations UL Listed Finish Black, Natural, White Dimmability Dimmable All trim types are available including baffle, alzac, wall wash, adjustable "eyeball", wet location and airtight rated trims. Call 1-800-480-0707 or email firstname.lastname@example.org to choose popular trim colors including bronze, metallic, white, black or custom color options.