Amazon has the 4-Pack dalattin 100 Watt Equivalent 15W A19 LED Bulbs (5000K Daylight) for $9.99 - $5 off with coupon code 2E65G5ZQ at checkout = $4.99 with free shipping on $35+ or with Prime.

Amazon promo codes don’t always work on the first attempt. Try refreshing the page and re-entering the code.