K-lite Energy Saving 3 Way Light Bulb 50-100-125 Energy Saving: 50, 100, or 125 watt output only uses 12, 23, or 30 watts Three way bulbs mean that the level of brightness may be changed (Not dimmable) Warm white light : 2200 Lumens / 2700K (Yearly cost = $3.61) Lasts up to 9 YEARS; 10x LONGER than a standard light bulb Average Life of 10,000 Hours