Yes it does. You can ask Lexel for more info and if you want to tweak anything.
Right now I’m using my cellphone to measure lux from ceiling bounce and convert it to lumens using flashlights with known lumen measurements which is far from ideal. But I will soon own a real lumen “sphere” that our well known TA is producing. A bunch of other guys on this forum will be buying it too so it will become the standard lumen testing aparatus in the flashlight community going forward. Killer deal for only $100 for the 3.5” version.