Each Advanced Air Purifying Compact Fluorescent Light bulb uses just 25 watts while producing the equivalent of 100 watts of incandescent light. The special Nanostar Green TiO2 coating keeps the air fresh and clean of harmful air pollutants and VOCs. The special phosphorus replicates natural sunlight improving moods, mental focus and more.  Plus, based on average use of 3.5 hours per day - each WellnessLight KIDS will last up to 8 years!  A Double Pack last up to 16 Years!!