4' Deep recessed channel to mount low voltage tape lights flush with surface. Field cuttable Aluminum extrusion Recessed installation Included: Diffused lens and end caps Length: 4' (field cuttable) Finish: Aluminum Compatible Tape Lights: NUTP5: 24V Hy-Brite LED Tape Light NUTP8: 24V High Output LED Tape Light NUTP9: 24V Side-Lit LED Tape Light NUTP10: 24V CCT Color Tuning LED Tape Light NUTP12: 24V Comfort Dim LED Tape Light NUTP14: 24V COB High Output LED Tape Light NUTP15: 24V COB Standard LED Tape Light NUTPCOB-RGBW: 24V RGBW COB LED Tape Light