Dolls house miniature electrics. A 100ft reel of dolls house self adhesive solid single copper tape. For use on copper tape systems on large dolls houses. Advice is available on the use of this product – – if you require help – just contact us – e-mail or phone. A dolls house [certified] electrician is here to help. – To be used with a 12 volt transformer power supply unit or 12 volt dry cell batteries. *NOT FOR USE ON MAINS SUPPLY – – – – **Not suitable for children under 14 years.