This fan comes with energy-saving, California Title 24 compliant fluorescent lighting. And at the touch of a switch the PowerHeat design provides efficient, soothing warm air. You don't need to heat the entire house to have a comfortable bathroom first thing in the morning. And it simply doesn't make sense to wait for your central heating system to do what this piece can do instantly. This Heater / Fan / Fluorescent Light provides it all quickly and efficiently.