230 watt poly solar panal 1) TUV,CE,IEC,ISO 2) ... %Power: -0.47%NOCT (nominal operating cell temperature): 45°C (±2°C)Mechanical Characteristics: Dimensions: 1,640 x 992 x 45mmWeight: 19 ... power output, 90% within 12 years, 80% within 25 years 230 watt poly