| Descriptors |
Electric ballasts, Testing conditions, Power factor, Test equipment, Lamp caps, Ignition voltage, Electric current, Shape, Rated power, Rated frequencies, Rated current, Rated voltage, Circuits, Voltage, Metal-vapour lamps, Gas-filled lamps, Dimensions, Photometry (light measurement), Red, Electrical testing, Lamps, Marking, Lighting equipment, Electric lamps, Mercury-vapour lamps
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