... color temperature, luminous flux, luminous flux efficiency,lamp power, lamp voltage, etc Cooperating with PM200 photometer,WT104 digital ... color temperature, luminous flux, luminous flux efficiency,lamp power, lamp voltage, etc.EPC photoelectric test software is optional ... . Test and display the correlated color temperatrue of halogen lamp filament lamp ets1. Display range:1500K~9999K2. Test range:2000K ...