ΔE 15.7, loose: different enough that you should pick on purpose. Kabalite Green is a little darker, more saturated, cooler than Mecha Light Green.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Kabalite Green is a little darker, more saturated, cooler than Mecha Light Green.
The same difference applies the other way round: Mecha Light Green is a little lighter, more muted, warmer.
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 Mecha Light Green on the colour wheel See Kabalite Green on the colour wheel
All matches: Mecha Light Green equivalents · Kabalite Green equivalents