; The EcoNU4QW is an economical and highly efficient spec grade 4" recessed wall wash with thoughtfulconstruction and pleasing aesthetics. Standard with premium dimming using EldoLED 1% flicker free driversnin120V, 277V, and step down transformer for 347V. An asymmetric reflector with a highly-efficient BrightViewnangle-bending lens produces excellent wall washing with no scalloping.; For the trim version, a minimalistic look is achieved with an ultrathin 1/16" trim that is only 5/16" wide. Colornchoices of both trim and bezel are offered for a customized look. For the trimless version, a perforated, mud up,nregressed trim assembly provides for clean, trim free installation. Perforated mud frame’s integrated lip helpsnguide the joint compound creating a sharp and clean opening.