Wattage (W) is a measure of how much electrical power your device sends to the coil. More watts = more heat = more vapor per puff. But it's not linear — doubling the wattage doesn't double the flavor. It increases temperature, which changes how e-liquid vaporizes and which flavor compounds come through.

Think of it like an oven. Too cold and your food is raw; too hot and it's burnt. There's a sweet spot in between where everything tastes right — and that sweet spot is different for every "recipe" (coil + e-liquid combo).