Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – BlitzWolf BW-CML1 LED Monitor Light Bar [EU] (-3 USD)
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood.
Link: Banggood product page
Price: -3 USD
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGBWCML1, BGCNCML1, BGPROBW30, BGABWCML1, BGHU0589, BGAUCML1, BGCML1CN, BGb3f618, BGHU0737, BG70632d, BGb1bbe6, BGBRCM11, BGCZCM1, BGa93353, BGBHW449, BGZAH449, BGac34e5
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – BlitzWolf BW-CML1 LED Monitor Light Bar [EU] (-3 USD)
Price history and price alert
Here is price history (for all/most countries) for BlitzWolf BW-CML1 LED Monitor Light Bar.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).