Just check coupons out (with price alert and history). Let’s see what best price is ATM.
Light angle: 270 degree, Bulb type: E27, Delay time: 50-70 seconds, Color rending index: >80, Lumen: 1000lm, Material: aluminum + pc, Color temperature: warm white(3000K), Size: 110*53mm, Wattage: 12W, pure white(6000K), Detection distance: 5~8m, Sensor beam: 110 degree, Led type: smd2835, Led quantity: 12leds, Input voltage: AC100-240V
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. There is one great coupon!
Link: Banggood product page
1. ($6.20): AFfbG10
this code has to be applied in your 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): BGSENBUB, bgariluxbub
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for ARILUX E27 12W PIR Motion Sensor Bulb 1000lm.
Price records source(s): 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)).