What happens when using EpiTect MethyLight Assays on only partially bisulfite converted DNA template?
FAQ ID -2009

If only two of three CpG sites are methylated in the template DNA, EpiTect MethyLight Assays used with the EpiTect MethyLight PCR Kit will detect the site as methylated, irrespective of conversion success for the third CpG site.

However, if only one of three CpG sites is methylated, and the remaining two unmethylated C residues fail to convert to U after bisulfite treatment, the EpiTect MethyLight System will detect the unmethylated site as methylated. Therefore we strongly recommend to use our EpiTect Bisulfite Kits to achieve 100% conversion rate.