RoHS, also known as Lead-Free, stands for Restriction of Hazardous Substances. RoHS, also known as Directive 2002/95/EC. It restricts the use of six hazardous materials found in electrical and electronic products. All applicable products in the EU market must pass RoHS compliance. RoHS impacts the entire electronics industry and many electrical products as well. The Directive requires that electrical and electronic equipment sold in the EU, That does not contain:
1- Lead (Pb)
2- Mercury (Hg)
3- Cadmium (Cd)
4- Hexavalent chromium (Cr6+)
5- Polybrominated biphenyls (PBB)
6- Polybrominated diphenyl ether (PBDE)
7- Examples of product components containing restricted substances
RoHS restricted substances have been used in a broad array of consumer electronics products.

Examples of leaded components include:
1- Paints and pigments
2- PVC (vinyl) cables as a stabilizer (e.g., power cords, USB cables)
3- Solders
4- Printed circuit board finishes, leads, internal and external interconnects
5- Glass in television and photographic products (e.g., CRT television screens and camera
lenses) 6- Metal Parts
7- Lamps and bulbs
8- Batteries