Otronics via Amazon offers its Otronics 4-watt (40-watt Equivalent) CA10 LED Candelabra Bulbs 6-Pack in Daylight or Soft White from $14.50. Coupon code "3JCERFK2" drops the price for both options to $9. Plus, Prime members receive free shipping. That's tied with last month's mention and the lowest price we could find by $13. They feature an E12 base and a lifetime of up to 25,000 hours. Deal ends May 31.