Amazon offers Prime members the Philips SlimStyle BR30 Dimmable Soft White Light Bulb 2-Pack, model no. 452391, for $8.39 with free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $6.94.) That's the lowest price we could find by $10. These 60-watt equivalent bulbs are designed for recessed fixtures, and last for nearly 23 years.