I have made air cooling uv led lamp and tested more than 500 hours. it is 3.6w/pc*21/pc=75.6W one.
Operating voltage is max.25.4V, but I fix my dc power supply(smps) to 23.5V for continuous LED lighting and no clogging.
Printer is Epson p600, 8channel one. I can enjoy 1440*1440 resolution printing long time, maybe more than one year without any clogging of printhead.
In my experience, bad Uv ink damages printhead seriously even though you lowered led power supply to enough safe zone.
Bad ink break the inner mechanism of printhead within several hour continuous printing.
Pls try to find quality uv inks to keep printhead in high condition.
