The instructions for changing it are in the Behmor manual (online, at least). It says it's a normal 20 watt oven bulb.
Three Francesconi (CMA) espresso machines - Rossi, San Marco, LaCimbali, Faema and 2 Mazzer Major grinders- CoffeeTech Maggionlino, Hottop, Alpenröst and HW Precision roasters. I decided I needed a bit of a change so I roasted some Monsooned Malabar. That was a change!