GE Lighting 47448 12/23/29-Watt Energy Smart Spiral 3-Way Light Bulb for $12.68. Shipping is free on orders over $25. If needed, use this Filler Tool to pad the order to qualify for free shipping. Here is a screenshot for your reference. This energy star rating light bulb features 10,000 life hours, 600, 1600, and 2150 lumens, and has 50, 100, and 150 watt equivalency (this bulb uses 12/23/29W). Most places have this light bulb for about $18.