$15.39 – Outdoor Waterproof Wall Mounted Solar Light 3 Mode Human Body Sensor Solar Lamp Light Control Auto ON OFF Porch Light for Garden – 2PCS Warm Light+Clip.
When I was updating this page, then coupon price was $15.39 for 2pcs Outdoor Waterproof Clip Mounted Solar Light Human Body Sensor (in Banggood). Basically copy coupon, view price history or create e-mail price alert. What is the best price?
Latest coupon code price check (UTC time):
Banggood ($15.39)
Banggood warehouse is located in China. Hmmm… There is no active coupon in Banggood at this moment. Good or bad price? Looks like this is great price. I didn’t track lower than that in CouponsFromChina database ever.
Link: Banggood product page
Price: $15.39
Additional Banggood coupons: first page and second page
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
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 2pcs Outdoor Waterproof Clip Mounted Solar Light Human Body Sensor. The lowest price was: $15.39.
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)).