All final products are tested and marked for ranking by color coordinates and luminous flux, so without knowing the correct rank of the involved products it’s difficult to compare with, as there’s a very large parameter dispersion to obtain the correct results. But, for a rough estimate:
-Nikia Blue LEDs intensity
3.2 lm up to 6.4 lm (dominant wavelength: 465nm - 475nm)
-OPTEK Blue LEDs intensity
4.9 lm up to 8.2 lm (dominant wavelength: 460 nm- 470nm)
If we consider 80% OPTEK LEDs emission intensity at 470nm, the statistical dispersion area: 3.92lm - 6.4 lm, similar to the Nikia Blue LEDs…