Solar Light Outdoor 3 Working Mode Motion Sensor Wall Lamp is for $19.99 (in Banggood). You can create price alert here, copy coupons and view price history. Do you want to know what the best price is?
Solar Light Outdoor 3 Working Mode Motion Sensor Solar Remote Control LED Garden Wall Lamp Outdoor Light IP65 Waterproof – #A
Latest price update (UTC time):
Banggood ($19.99)
Banggood warehouse is located in China. As you can see I didn’t find any active coupon for this product right now… What about the price? Hmmm, price is higher than average (which is $16.74 right now), so better set price alert down below…
Link: Banggood product page
Price: $19.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG589b2e
(I don’t think these’re gonna work, but you can try ’em out anyway)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for Solar Light Outdoor 3 Working Mode Motion Sensor Wall Lamp is here.
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)).