The ModuLED Nano passive LED coolers are standard foreseen from a variety of mounting holes which allow direct mounting of LED engines, COB's and secondary optics on the LED heat sink. In this way mechanical afterwork and related costs can be avoided, and lighting designers can standardize their designs on a limited number of LED coolers. For spot and downlight designs from 600 to 3,000 lumen Diameter 70mm - Standard height 50mm & 80mm - Thermal resistance range Rth 1.8 - 2.2°C/W Modular design with mounting holes for Zhaga book 3 LED modules, Bridgelux BXRA ESS, ESR, Vero 10, Vero 13, Vero 18 and V-series, Citizen Citiled CL-L022, CL-L032, Edison Opto Edipower II HM/HR/HS/HV/SD series, LG Innotek PKG 10/13/17/24W, Philips Lumileds Luxeon COB's 1204, 1205 and 1208, Prolight Opto PANA andPABA COB series, Tridonic Talexx Stark SLE and Mini G3, Xicato XSM and XPM LED modules.