Price history, coupons and price alert are available on this page. Let’s see what best price is ATM.
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Charging time: 8-12 hours, Lumens: 1000LM, Discharging time: Over 10 hours (depends on the mode choosing /), Housing Material: ABS, Sensor Angle: 270 degree, Battery Capacity: 2200MAH, Power: 2W, Waterproofing Rating: IP65, (with direct sunlight)
Banggood
Banggood warehouse is located in Europe 
. I’m not sure about the price, coz I have only 1 record(s) in my database. Well, there is one coupon available right now.
Link: Banggood product page
1. ($45.95): BG589b2e
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG333c11, BGOct22LED, BGLEDNOV2022, TTBLACK5, BGSaleFeb8, BGSCHOOL8OFF, BGCAPITALOS8, BGCOUPERT8
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – 4pcs 100 LED Solar Powered PIR Motion Sensor Wall Light ($-3)
Price history and price alert
It doesn’t make sense to generate price history chart, because there is one price record which is: $39.99.
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)).