I just swapped out the stock lens with UCL 35.00mm x 19.00mm lens and got the following measurements:
E07 XP-L HI 5000K w/ stock lens
lumens: 195 lumens
CCT: 4957K
DUV: 0.0025
Ra (CRI): 72.3
R9: –22.1
Rf: 69
Rg: 97
E07 XP-L HI 5000K w/ ucl lens
lumens: 198 lumens
CCT: 5030
DUV: 0.0003
Ra (CRI): 72.6
R9: –19.2
Rf: 69
Rg: 98
E07 XP-L HI 4000K w/ stock lens
lumens: 443
CCT: 4146K
DUV: 0.0030
Ra (CRI): 72.7
R9: –22.8
Rf: 71
Rg: 95
E07 XP-L HI 4000K w/ ucl lens
lumens: 454
CCT: 4184K
DUV: 0.0010
Ra (CRI): 73.3
R9: –18.9
Rf: 71
Rg: 96
I’m pretty impressed with the results. Dropping DUV by 0.0020 is quite a difference. That amount of green reduction is between a Lee Filter Zircon 804 and 805. However instead of losing 15% output, it actually gains 2% output.