Problem with an Elegoo Mars

[fromFDMtoSLA]

without a diagram of the pcb and the part-description it's a hard job.
there are some DC/DC-converts for UV-Led at Ali... - https://www.aliexpress.com/item/32956928614.html -
but without the specs for the Elegoo-Leds its a risk (worst case is to grill the Led's)

best solution is to contact Elegoo-support