Change xenon lamp yourself?

Recently, my left front light only works part-time. I fear once again a pig-etured stay at and like to take this into my own hands. Question: is the 1st DIY-like feasible, and if, 2. with how much effort involved? I heard/read, Xenon burners would always be exchanged in pairs. Is there anything there or just money making? Greetings and thanks for any appeal. The blue dog