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Nora 4 Inch Cobalt Click LED Retrofit Round Reflector 750Lm 10W 3000K Natural Metal Reflector Natural Metal Flange 120V-277V Input Triac/ELV/0-10V (NLCBC2-45130NN/ALE4) Tier6 Nora 4 Inch Iolite RoundNora 4 Inch Cobalt Click LED Retrofit Round Reflector 750Lm 10W 3000K Natural Metal Reflector Natural Metal Flange 120V 277V Input Triac ELV 0 10V Dimming (NLCBC2 45130NN ALE4)