Power transformer Input voltage: 120VAC 60Hz Output voltage: 2.0~24VAC Output current: 50~1000mA Power range: 0.3~4.8W Size: EI35 Safety: UL/CUL/CSA Product Certifications: Certificate Standard:BS Certificate Number:YKG304239 Issue Date:27-May-2004 Expiry Date:26-May-2007 Certification Agent: TUV