DL LED XSM/4AA is a 4 inch aperture. LED accent light powered by one of a number of Xicato LED modules including Artist Series and Vibrant Series modules. all of which are distinguished by extraordinary color consistency (within 1x2-step MacAdam ellipse). See tables on the reverse for wattages and efficacies. Luminaire provides 363 degree horizontal rotation and 0 35 degree angular adjustment with lockable focus. Precise reflector design minimizes aperture brightness. Recess depth is 8.75 inches. Luminaire includes an internal reflector to produce a 20 degree spot, 40 degree flood or 60 degree wide flood beam spread. To allow beam spread to be changed after installation, internal reflectors are also available as accessories. Standard driver of 2000-lumen Artist Series model permits dimming to 10 percent by a 0-10V dimmer on 120-volt or 277-volt service. Standard driver for all other models permits dimming to 1 percent by a 0-10V dimmer on 120-volt or 277-volt service. Luminaire accepts one or two of a number of Optical Accessories including lenses and color filters. A glass beam smoother is included.