ΔE 7.6, close: similar, with a visible difference side by side. Benzimidazolone Yellow Light is a little lighter than Flash Gitz Yellow.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Benzimidazolone Yellow Light is a little lighter than Flash Gitz Yellow.
The same difference applies the other way round: Flash Gitz Yellow is a little darker.
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 Flash Gitz Yellow on the colour wheel See Benzimidazolone Yellow Light on the colour wheel
All matches: Flash Gitz Yellow equivalents · Benzimidazolone Yellow Light equivalents