7W Class high lumen output and efficacy from a single, easy-to-use LED array The HRB0604 LED Array delivers high lumen output and high efficacy in a single, easy-to-use package that eliminates the need for reflow soldering. Optimized to simplify designs and lower system cost, the HRB0604 LED Array can deliver system-level performance of 250 to over 1150 lumens, enabling applications ranging from GU10s to commercial downlights.