Radion G6 models are built on the same heat sink and driver platform as the equivalent Radion G5 models (XR15 or XR30). Excitingly this allows for a same model (XR15 and XR30) upgrade path for G5 to G6. Included in the upgrade kit is the G6 cluster and HEI lens – which together combine to create the Hybrid Hemispherically Edge Illuminating (HEI2) lens system.