$12.99 – WEST BIKING Smart Brake Sensor Bike Taillight 450mAh Battery 3 Light Modes Type-C Rechargeable Waterproof Wear-resistant Bicycle Rear Light for Night Cycling.
WEST BIKING Smart Brake Sensor Bike Taillight is for $12.99 (in Banggood). Price history, coupons and price alert are available on this page. Let’s see what best price is ATM.
Latest coupon code price check (UTC time):
Banggood ($12.99)
Banggood warehouse is located in China. As you can see I didn’t find any active coupon for this product right now… Low/high price? Hmmm, price is higher than average (which is $10.41 right now), so better set price alert down below…
Link: Banggood product page
Price: $12.99
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGCYCLE5
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for WEST BIKING Smart Brake Sensor Bike Taillight. The lowest price was: $7.99.
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)).