ΔE 44.6, loose: different enough that you should pick on purpose. Lemon Green is noticeably darker, much more muted, cooler than Lens Flare Glow.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 45). Lemon Green is noticeably darker, much more muted, cooler than Lens Flare Glow.
The same difference applies the other way round: Lens Flare Glow is noticeably lighter, much more saturated, 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 Lens Flare Glow on the colour wheel See Lemon Green on the colour wheel
All matches: Lens Flare Glow equivalents · Lemon Green equivalents