... 3.Low lumen attenuation 4.CE Rohs approved. 12*1W led ceiling light1) Input voltage: 12V,110V,220V optional2) Power: ... angle: 30/45/60/120 degrees6) body temperature: ≤53°C7) led working temperature: ≤62°C8) brightness degradation: 3%-5% 1kh9) ... ,000hrs10) no UV or IR radiationApplication:replacement bulbs for general lighting, especially for museums, hotels, shopping malls,washrooms,balcony,stairs, ...