The coupon price for Adjustable Step is 8.59 USD (in Banggood). Price history, coupons and price alert are available on this page. You probably want to know what is the best price?
Latest coupon and price update (UTC):
Banggood (8.59 USD)
Banggood warehouse is located in China. CouponsFromChina software could not find any coupon for this product in Banggood. You probably want to know if this is a good price. Hmmm, price is higher than average (which is 8.12 USD right now), so better set price alert down below…
Link: Banggood product page
Price: 8.59 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): 2022ACTIESNL, 8Couponsde, MVC8SPRING, 8BGwbg2204, 2203ActiesNL, 8wEbgaInS5, pROMo8cuPoN, BGJUNEGSG9, TTSUMMER8, Cuponation9, BG00c906, BG589b2e
(probably won’t work, but you can try them out)
Aliexpress
Click here… to search for DC 6-40V To 1.2-36V 300W 20A Adjustable Step Down Module Board on Aliexpress
Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for DC 6-40V To 1.2-36V 300W 20A Adjustable Step Down Module Board is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).