Identify the light source
Confirm the bulb holder, supported wattage and shade attachment. Check that suitable replacement bulbs are readily available where the lamp will be used.
Name the job: task, ambient or accent light. The intended job determines the useful height, shade direction and placement in the room.
Follow every electrical part
Ask for clear photographs and a seller description of the holder, cable, strain relief, switch and plug. Do not open the fitting or handle exposed electrical parts as part of a buyer inspection.
Do not use uncertain vintage lighting until it has been assessed by an appropriately qualified professional for the country in which it will be used. Damage to a cable, plug or fitting deserves a repair decision before use.[1]
Look beyond the front view
Request close views of glass rims, ceramic repairs, metal joints, shade interiors and areas affected by heat. Small defects matter most where parts connect or carry weight.
Measure the shade diameter, arm reach, base footprint and cable route. These dimensions decide whether the lamp belongs in the intended place.