Includes holes for easy installation Compatible with ORTECH 4" LED Slim Lights - (DISC4-3CCT, DISC4FL-GM-WH, OLT2-410-5CCTWH, OLT2-412-WH, SLIM4-3CCT, SLIM4BP-5CCT, SLIM4CONT-3CCT, SLIM4DGF-5CCT, SLIM4DGR-5CCT, SLIM4DR-5CCT, SLIM4GIM, SLIM4GIM-5CCT, SLIM4ID-WH, SLIM4RG, SLIM4HE-3CCT, SLIM4-5CCT, SLIM4FR-5CCT, SLIM4FR+FL-5CCT)