Public Lab contributor SarahC just asked a question entitled 'Link for perfect CFL on Amazon UK? ':
Help them by posting an answer here: https://publiclab.org/questions/SarahC/05-31-2018/link-for-perfect-cfl-on-amazon-uk
Is there a good CFL on Amazon UK that will give me very sharp lines?
My CFL's are all new and they have a wide spectrum with no clear lines. (checked with handheld spectroscope.)
Thanks!
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