MT3608 DC-DC Step Up Boost Power Converter Adjustable 2A Module Step Up Voltage Regulator Board Input 2-24V to Output 5V-28V (Pack of 5)

Yeah those are generic run of the mill 3mm leds. Usually good up to 20mA. I think these boards might be suitable as they can boost 3V up to 20V. Supposedly. https://www.amazon.com/Ferwooh-Converter-Adjustable-Voltage-Regulator/dp/B0D17PHDSD