... for lighting distribution,one is for focusing,another is for divergencing. [d]Wide Input Voltage from 90V~264VAC,constant voltage constant current ... ,Only professional electrician can install the lamp, please check the lamp very carefully before installation.2,Please ... offering high quality waterproof IP65 LED Flood Light and LED Tunnel Light with Epistar/Bridgelux LEDs and UL proofed Meanwell driver. ...