ETC / GDS ARCP151L330CA ArcSystem V1.5 ArcPro Recessed Adjustable 3000K 30 Degree Stage LED Lamp Description The Pro One-Cell luminaire provides high-quality light and smooth dimming for short- to medium-throw applications. With a high quality light having a CRI over 90, and a variety of color-temperature and beam-spread options, the Pro One-Cell is a must-have for single-cell LED installations. Pro One-Cell luminaires boast convection cooling, noiseless operation and stepless dimming. This luminaire comes in 18, 30 and 50 beam angles, with several available color temperature variants including the additional option of Fade to Warm technology. The luminaire uses the D1 ArcMesh Driver and fits in a 170mm (6.69 inch) ceiling cutout.