This 4-inch canless recessed lighting fixture is the bee's knees for recessed lighting! Offering 730 lumens of bright light and standing a mere 0.5" tall, it can fit even the tightest of spaces. Installation is a cinch; just cut a hole in your ceiling and let the attached spring clips do the rest! And the cream of the crop? No rough-in can is required for setup - it really is one of the best lighting options out there!