Cheap Luxmeter to set power

Hey folks

I bought a cheap luxmeter in hope of dialing in my lighting a little better. I'm using Samsung 80cri 3500k strips. Is there any way to convert this to ppfd or something else where I can get an indication if I'm using enough light?

Multiply lux by 0.014505 to get a very close conversion to PPFD. That value is for 3000k not 3500k but the difference between the two will mean for only a tiny change in the PAR.

https://www.rollitup.org/t/par-multiplier-thread.928907/

Or simply divide by 69 (for 3000K) instead of a multiplying by a bunch of decimal numbers. For 3500K divide by 71