ΔE 20.4, loose: different enough that you should pick on purpose. Trollslayer Orange is a little darker, much more saturated, warmer than Light Orange.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 20). Trollslayer Orange is a little darker, much more saturated, warmer than Light Orange.
The same difference applies the other way round: Light Orange is a little lighter, much more muted, cooler.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Light Orange on the colour wheel See Trollslayer Orange on the colour wheel
All matches: Light Orange equivalents · Trollslayer Orange equivalents