Imho, you need commercial hot blower for melting lead instead of Normal home use hair dryer which can produce concentrated heat focus n with higher degree of heat!
I have 7 Cree cool white(R5) and 7 optical len (60 degree) left from my current project for sale.
7x Cree 3W cool White (R5) - S$4.20/pc
7x 60 degree Len (LL01CR‐DF60L‐M) - S$1.40/pc
Take all at S$35.00 only.
PM me if interested.
Deal at west only.