Lamp failed - good service

I bought several of these lamps at Hofer. One of them dropped out after several hours of burning time. After an email to Müller light quickly and very carefully packed replacement came in the form of a new lamp. The replacement was performed unbureaucratic and delivered postage free. It is true that the lamp holders are very hot. The stated life expectancy seems therefore resorted to high. I also tested other replacement lamps and had even at this early failures. The relatively new technique seems to still suffering from teething. The Service of Müller light I found jedenfallls well.