Aliexpress
Click here… to search for 3Pcs KINGSO 220V 40W E27 ST64 Edison Vintage Light Bulb [EU] on Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in Europe 
. I don’t really know if this price is reasonable, coz there’s no price history in my DB. I am tired of searching coupons, but I found one for you…
Link: Banggood product page
Coupon (9.39 USD): BG589b2e
(CouponsFromChina.com tip: paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGLEDNOV2022, BG00c906
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
It’s a new item in our database, so I can’t create price history chart. We have saved this price in database: 8.79 USD.
You can set price alert (for Banggood).