"Ah, the age-old question of how to replace a bulb in a Christmas light. Well, it's quite simple, really. First, locate the bulb that needs replacing. Next, gently twist it out of its socket, taking care not to damage the wiring. Then, remove the new bulb from its packaging and insert it into the socket, ensuring it is properly aligned. Finally, give it a gentle twist to secure it in place. With that, you're all set for a bright and festive holiday season!"