Micron Green StandardBuilt with sulfur resistant resistorsCE (Europe): EN 55032 Class B, RoHSUKCA (UK): SI 2016/1091 Class B and SI 2012/3032 RoHSFCC: CFR Title 47, Part 15 Class BUL/cUL: approval to UL-60950-1, 2nd Edition, IEC 60950-1:2005 (2nd Edition)