A lux lamp is a lamp used in pre-electric times that has a gas oil and spirit tank in it, and pressure must be created with a pump to burn it. The tank lid and pressure relief can be controlled from both screws. On the other side there is also an impeller and a pump.
It was called a Luxury Lamp because it was usually used by families with better financial situation. It appeared later than the Gas Lamp, and the lighting area is wider.
This lamp is used when guests come to the house, it becomes clear from the windows that the lamp of luxury is lit in the house, and it becomes clear that there are guests in that house.