... : 1)50,000h life time 2)Wide range of input voltage: AC100-240V 3)Instant start, no flickering, no humming Product ... :1.energy saving: low power consumption,low heat,high level of brightness,uniform light-emitting,energy-saving about 50%.2. long serving ... rooms,offices and other occasions that have high demand for the comparatively strict controlof light,such as laboratories. it can replace traditional ...