Back to all products Share this page PDF version 4" Frosted Glass Trim 4" frosted glass trim. For use with MR16 lamps with GU5.3, GU10, and PSA37. Jump to Section Overview Resources Catalog Numbers Compatible PRODUCT IMAGE Frosted Glass. Lamp: MR16 with GU5.3, GU10, and PSA37. O.D.: 4 3/4". Resources & Downloads Specifications Specifications Other Alpine™ System Presentation Product SKU Catalog Number Finish EL1452R Red