Direct contact allowed; no clearances are required * Housing adjusts from 5/8" - 1-3/8" to accommodate various ceiling thicknesses. * Adjustable socket mounting plate allows for best possible light distribution * Bar hangers are adjustable from 13-5/8" to 24" and can be repositioned 90 degrees * Junction box is listed for through branch circuit wiring and contains seven 1/2-in knockouts and four ROMEX® pryouts with strain relief