DL LED XSM/4 is an efficient, 4 inch aperture, LED downlight 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 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. Precise external reflector design minimizes aperture brightness and provides a shielding angle of 40 degree. Recess depth is 8.75 inches. 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.