Go down and check coupons out. Remember to check price history if it is available. Let’s see what best price is ATM.
Wattage: 5W, Voltage: AC85-265V, Connection: E27, Initial Lumens (lm): 500 – 600 lm
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. There is one coupon right now! Check this out.
Link: Banggood product page
1. ($6.26): AFfbG10
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): e2bcea, TTxBG10, BGss8%hl, bgssaff9
(these coupons are old, so probably won’t work)
Price history and price alert
Price history (for all/most countries) for YWXLight Rotate Motion Sensor LED Bulb E27 is here.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).