1:High illuminance efficiency 2.Long life service 3.Good light color with Ra70 Dysprosium Lamp1.Products Power:175W,400W,1000W,2000W,3500W2.Life500-1000 hours.3.Model :TDL4.Feature:the high efficience of lighting,long -time life,Great color,Rendering Index RA 70.5.Application:Widely used at Airport,Gym,Harbor,Construction field,Plaza lighting.At last ,the detail demands,we're all according to ...