Hong Kong Team Claims Efficiency Breakthrough In LED Filament Lamps
Luminous efficacy of 129lm/W is 1.5 times that of traditional LED lamps. LED Filament Lamps A research team of State...
Read moreLuminous efficacy of 129lm/W is 1.5 times that of traditional LED lamps. LED Filament Lamps A research team of State...
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