30W Class high lumen output and efficacy from a single, easy-to-use LED array The HRE1221 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 HRE1221 LED Array can deliver system-level performance of 1999 to over 3658 lumens, enabling applications ranging from GU10s to commercial downlights.