Aliexpress
Click here… to search for BlitzWolf BW-SL0 LED Selfie Ring Light on Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. There is one coupon available! Pretty cool, huh?
Link: Banggood product page
Coupon (12.75 USD): BGAlerabatKL
(CouponsFromChina.com tip: just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
Old coupons (from the oldest to the newest): bGhOnEy10, BGSL0, BG20SST, BGBW152, BGdragonBoat, BGAFF10OFF, bgshOOp10, 13f142, BgcLuBofErtA10, 10%ForNewBW, BG4BW25, BGCuponation10, BGHOTSHOP15, BG53e9c8, BG4f6c6d
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Here is price history (for all/most countries) for BlitzWolf BW-SL0 LED Selfie Ring Light.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).