In terms of price, all copper lamps are at least twice as expensive as iron lamps;
But in terms of service life and aesthetics, all copper lamps are completely worth it. No matter how good the iron lamp is, it may rust and peel off after 10 years, but the service life of all copper lamps is generally more than 50 years.
Properly maintained, it can last for hundreds of years. The quality and color have no great impact, and the collection value is relatively high. Many famous foreign churches and castles use all copper hanging lamps, which are still bright after hundreds of years