BIKIGHT Solar USB Rechargeable LED Outdoor Camping Light (Banggood, Aliexpress: Waterproof: IP44, Beam angle: 180 degree), Input voltage: 3.7-4.2 (V), Lamp body material: PVC, Weight: 260 (g), Power factor: 5w, Luminous flux: 300 (lm), Can be dimmed: Yes, Shade material: PVC, Color rendering index: 70-80, Dimensions (Φ*H): 103*173(mm), Solar & USB Rechargeable LED Camping Light (the best price with coupon)).
Basically copy coupon, view price history or create e-mail price alert. Best price?
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):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($8.99): FIN8982
2. ($9.99): BGaa2061
3. ($13.11): BG8Alerabat
4. ($13.11): BGOutlight10
apply code in your basket (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/feV
Old coupons (from the oldest to the newest): BG361505
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Here is price history (for all/most countries) for BIKIGHT Solar USB Rechargeable LED Outdoor Camping Light. The lowest price was: $8.99.
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)).