I have just checked coupons. The lowest price I could get is $35.99 for Astrolux BL03 Bike Headlight with Taillight (in Banggood). Go down and check coupons out. Remember to check price history if it is available. Best price?
Astrolux® BL03 XPG LED 1200LM Bike Headlight + Bike Taillight 6000mAh High Capacity Power Bank Dual Distance Beam Bike Light USB Rechargeable Flashlight for Electric Bike Electric Scooter Bike Light Set
Latest coupon code price check (UTC time):
Banggood ($35.99)
Banggood warehouse is located in China. There are no coupons available at this moment in Banggood. Isn’t it too expensive? From what I can see this price is higher than average price ($31.83).
Link: Banggood product page
Price: $35.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): FIN4421, BGOutlight10, BG589b2e, BG8FORMULAMX, BGcharles03
(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
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
Bicycle Lights Wired Remote Control Switch Signal Light Line Control Part Accessories For Bike Headlight | $7.56 | – |
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Here is price history (for all/most countries) for Astrolux BL03 Bike Headlight with Taillight.
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)).