The NU4RW PRIME 4" recessed wall wash series by ALPHABET offers multiple cutting edge LED technologies, premium performance and pleasing aesthetics. NU PRIME is the legacy, best selling, 621 Series with 1 piece reflectors, bayonet thin trim rings and specialty lens, decorative LiteOptics and optional WET rated construction. Downlight, wall wash and adjustable with all mounting options and most available dimming protocols on the market. XICATO XTM LED with EldoLED 1%, flicker free dimming standard. S.O.S. Quick Ship ready.