so i'm working on a project that involves a LED that flashes and i need to test the output of various combinations of LEDs. however the product is designed to both illuminate and get attention. so it flashes. i have a "white box" setup with a basic lumens tester i bought off amazon and it seems to work rather well for just a simple LED flashlight. however when i try putting a light that flashes in the chamber i can't get a good reading. with my fluke DMM i at least have a function to get average over time and min/max mode. however the flux meter isn't quite as nice. sample rate is trash and no min/max/average mode to speak of. does anyone have any suggestions before i bypass the "clock" on this thing?