I do have a beamshot of the Nicron B75-UV which has dual-LED: Cree XP-G2 S2 LED, with 300 lumens max rating and a UV395 LED. B74-UV uses an XPL-HD LED, with 600 lumens rating, and a UV395 LED. Beamshot is as follows: Nicron B75-UV vs Nicron B74-UV kzbin.info/www/bejne/qajUmmWGeb92Z5o Now that you mentioned about the B75, I decided to refer to Nicron's specifications again and was surprised to notice they updated the B75 (and also the B74UV). Updated B75-UV now lists using "Samsung LED" with max 1000 lumens rating. Updated B74-UV doesn't list which LED used, but now lists 700 lumens (where the previous one is rated to 600 lumens max). I'm sorry but I'm unable to keep following on each revision of Nicron flashlights, since I'm not sure which version they may send if I order (note: the flashlights I do beamshots with are all personally purchased by me. So far, no flashlight manufacturer sends me flashlights for beamshot testing). Nicron has a tendency to update their models, even when the updated model can be noticeably different (eg. in the above beamshot video, the Nicron B70/B70Plus previously use XPL-Hi LED, and new batches (both B70/B70Plus) now use Osram P9 LED, which results in slightly higher max lumens, but with slightly less throw compared to the previous XPL-Hi variant of B70/B70 Plus). Nicron B74/B74e has variants that use Cree XPL-HD, and also others that use Samsung (LH351B?) LED. Nicron N4 has variants that use XP-E2 (I have seen other people's reviews with this variant) and XP-G2 (I have tested this variant), again resulting in different max brightness and different beam patterns. These are sometimes not clearly listed (LEDs sometimes not listed, except referred to when researching.