Test Power , Power factor, Voltage ,Current,and Annual power consumption;lumen and color temperature ect for the led lamp. Lumen and color ... : Characteristics:High quality integrating spheres for LED and LED lamps only, nice streamlined shape design,high ... Lumen, Luminous, efficiency. Voltage, Wattage, Current,Power factor,, Annual power consumption(calculated by 10hrs/day)3. Equiped with ...