They never replied back when I emailed them that the second head was faulty. I kind of figured they would not reply and can confirm Imalents 5 year warranty is just writing on paper with nothing backing it. There is good news though as I finally got the second head working. I kept it on 13,000 lumens a couple of times and let it step down and the faulty led finally came back to life and stayed there and is still working as of today. No matter what I try with the first head, the one led remains only half lit.