Can you lighten dark varnish

Yes, you can lighten dark varnish, but the process can be challenging. You may use a chemical varnish remover to strip the existing finish, which will allow you to refinish the surface with a lighter stain or varnish. Alternatively, you might try diluting the dark varnish with a compatible solvent, but this can affect the overall finish and appearance. Always test on a small area first to ensure desired results.