* The GooLED-LG-4868 Innotek Modular Pin Fin Heat Sink are specifically designed for luminaires using the LG Innotek LED engines. * Mechanical compatibility with direct mounting of the LED engines to the LED cooler and thermal performance matching the lumen packages. * For spotlight and downlight designs from 600 to1800 lumen. * Thermal resistance range Rth 3.7°C/W. * Modular design with mounting holes foreseen for direct mounting of LG Innotek COB 10W/13W LED engines. * Diameter 48mm – standard height 68mm Other heights on request. * Forged from highly conductive aluminum.