The AOK OH Series (60W 100W 150W 200W 240W) UFO LED high bay lights are built to last in highly demanding industrial and commercial environments where performance, reliability and sustainability are critical. AOK OH Series LED luminaires are designed to provide brilliant white light with unprecedented lighting uniformity and superior glare-free illumination for highbay and lowbay applications in warehouses, manufacturing facilities, sports complexes, supermarkets, convention centers, exhibition halls, and other open ceiling facilities. Employing the very latest in high brightness LED chip technology and high efficiency TIR optics, AOK OH delivers maximum performance lighting with industry leading system efficacy of 170 lumens per watt. The high performance Lumileds LUXEON 3030 LEDs are mounted to a metal core PCB which thermally interfaced to a rugged, one-piece die casting aluminum heat sink to ensure proper thermal management of the system. Precision engineered PC lens is indexed and sealed to the PCB to ensure precise optical alignment for repeatable photometric performance and I65 ingress protection against dirt, moisture and water spray. The optical system offers 60°, 90° and 120° beam angles and can be tailored to meet clients' specific light distribution needs. The AOK OH LED high bay can be configured to deliver 10% uplighting to eliminate dark ceilings in many applications. A high PF, low THD constant current Mean Well LED driver provides high efficiency, regulated power supply. 4 kV surge protector supplied as standard and up to 20 kV surge protection is available. The driver offers stand-alone 1-10V/PWM dimming, DALI group control, and third-party wireless controls using ZigBee open standard protocol. The luminaire housing including the aluminum heat sink and driver compartment is powder coated for added corrosion resistance and an attractive aesthetic appearance.