... and maintenance costExcellent heat Aluminum sink and stable circuit designLong life of up to 50,000-80,000 hoursNo UV, ... range:LED bulb , LED tube light , LED spotlight , etc . Foxwoning has a innovative management concept , who pay much attention to R&D ,quality ,cost ... of led tube per month , and there are 30-50 pepole on the production . new quality power housing high lumen 5w E27 LED Spotlight