What does power 12w mean?

The rated power 12W refers to the power12w when the electrical appliance works normally;

If the actual power of the electrical appliance is greater than the rated power12w, the electrical appliance may be damaged;

If the actual power is less than the rated power12w, that is, the actual power is less than the rated power, it may not work normally. Rated power is the effective power that an electrical appliance can work continuously and stably, that is, it can withstand this power value and work stably for a long time without being damaged.