Typically, the sweet spot vaping temperature of THC Dabs starts around 410F and goes up to 500F.
Some people prefer low to mid-temperature dabs, which happen at 315°F to 450°F, while others prefer high-temperature dabs over 600°F.
Related:
Guide to dabbing temperatures
A good rule of thumb is to start low and raise as needed. Lower temps mean better flavor and a more pleasant experience, especially for beginners.