Xicato LED Star Heat Sink XSA-311 Φ135mm Features VS Benefits * The XSA-311 Xicato Modular Passive LED Coolers are specifically designed for luminaires using Xicato LED modules.（XSM、XTM and XIM） * Mechanical compatibility with direct mounting of the LED modules to the LED cooler and thermal performance matching the lumen packages. * Designs for XSM Module from 2000 to 4500 lumen. * Thermal resistance range Rth1.1°C/W. ( XSM Thermal class Q). * The cooler design with mounting holes foreseen for direct mounting of Xicato XSM、XTM and XIM Modules. * Diameter 135mm - standard height 40mm Other heights on request. * Center hole for cable guidance. * Extruded from highly conductive aluminum. Model No. 　 　 　XSA-311 Size Φ135xH40mm Material 　 　 　6063-T5 Finish 　 　 　 　Black Anodized Weight(gr) 　 　 510 Thermal Wattage 　 　 　45W HeatsinkΘs-a2 　 　 　126385 Thermal Resistance (°C/W)2 1.1