Descriptors | Luminaires, Lighting equipment, Tungsten lamps, Filament lamps, Discharge lamps, Fluorescent lamps, Type n protected electrical equipment, Marking, Temperature rise, Endurance testing, Thermal testing, Electric terminals, Electric ballasts, Electrical testing, Dielectric-strength tests, Impulse-voltage tests, Impact testing, Test equipment, Testing conditions, Lamp caps, Leakage paths, Clearance distances, Pressure testing |