应用Burning position任意 综合描述ILCOSQB/R-250/38/2B-E220-E40-90/226Base (standard designation)E40 技术方面－电参数Construction wattage250 WNominal wattage (packaging)250 W 技术方面－形状Length230 mmDiameter91 mm 技术方面－寿命Lifespan10000 h
技术方面－光参数Colour temperature3800 KColour rendering group2BColour rendering index RaMin. 60 Max. 69Luminous efficacy22 lm/WLuminous flux5600 lm