In summary, why choose the NewEnergy IP67 rated LED heat sink modules using Cree Extreme High Power LEDs? These modules are engineered to bring high quality lighting systems to market faster with fewer LEDs, higher reliability, and a lower system cost. The Mod Block Performance and Mod Block Standard series, powered by UL-listed LED Modules, provide 4,500 to 12,000+ lumen modular building blocks in a broad array of color temperatures and color rendering indices (CRIs). In addition, this series includes a UL recognized component (E482308) and is RoHS compliant. Combined with over a dozen IP67 rated optical patterns, and a highly-engineered heat sink technology, the foundation has been created for a robust LED lighting system in any market segment.