Tube dysprosium lamp High luminous efficacy,long life,Better color performance, Better color coformity. Tube dysprosium lamp seriesHigh luminous efficacy,long life,Better color performance, Better color coformity. DiscriptionWattsSupply voltageLumensMax diameterMax lengthBaseMeasurementDL-1000D1000220V70000Lm91380E4060*36*42/15pcsDL-3500D3500380V280000Lm122495E4060*31*57/8pcs Tube dysprosium lamp ...