* The XSA-319 Pin Fin Heat Sink are specifically designed forluminaires usingthe Xicato LED Modules. * Mechanical compatibility with direct mounting of the LED modules to the LED cooler andthermal performance matching the lumen packages. * Thermal resistance range Rth 4.5°C/W. * Xicato Thermal Class E , ( 60° tilt angle, 40°C ambient ) . * The cooler design with mounting holes foreseen for directmounting of Xicato XSM、XIM and XTM Modules . * Diameter 58mm – Standard height 30mm , Other heights onrequest. * Forged from highly conductive aluminum.