LED selection for my application
This site has a lumens to lux calculator, given beam angle and distance.

https://www.bannerengineering.com/us/en/company/expert-insights/lux-lumens-calculator.html

Looks like ~2300 lumen would yield ~1500 lux at 45 degrees and 1.5 meter.

Might look at "tactical flashlights" like these and see what kind of LED &amp; lenses they use to achieve 1300 lumen, go from there, use 2 of them kind of thing.