ΔE 9.6, close: similar, with a visible difference side by side. Sunny Skin Tone is a little darker, warmer than Radiation Glow.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Sunny Skin Tone is a little darker, warmer than Radiation Glow.
The same difference applies the other way round: Radiation Glow is a little lighter, 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 Radiation Glow on the colour wheel See Sunny Skin Tone on the colour wheel
All matches: Radiation Glow equivalents · Sunny Skin Tone equivalents