Nora 4 Inch Iolite LED Round Trimless Adjustable Slot 10 Degree Optic 850Lm 12W 3000K Black (NIO-4RTSLA30QBB) Tier8 And Standard NPS Threaded Openings backorder1428 Maximum Overall Length 5 RCD111I

And Standard NPS Threaded Openings

Nora 4 Inch Cobalt Click 1000Lm LED Retrofit Square /Square Regress 12W 3500K Black 120V 0-10V/Triac/ELV And 277V 0-10V Dimming (NLCBC2-45635BB/10LE4)

and the set screw locks rotation against the cap

IOTA Emergency Ballast For (1) 28W 4 Foot T5 Or (1) 17-55W 2 Foot -4 Foot T8/T12 Run At 120/277V (I-32)

3-Position (5

Nora 4 Inch Iolite LED Round Trimless Adjustable Slot 10 Degree Optic 850Lm 12W 3000K Black (NIO 4RTSLA30QBB) Tier8 And Standard NPS Threaded Openings backorder1428 Maximum Overall Length 5 RCD111I And Standard NPS Threaded Openings Nora 4 Inch Cobalt Click 1000Lm LED Retrofit Square Square Regress 12W 3500K Black 120V 0 10V Triac ELV And 277V 0 10V Dimming (NLCBC2 45635BB 10LE4)