Power supply type: USB powered, Light color: white light / warm light / natural light(optional), Power: 5W, Type: button type nine-level light / touch type three-level light(optional), Material: all aluminum + PVC translucent cover, Overall diameter: 15cm/25cm, Voltage: DC 5V, Light source type: LED, Color: Black/White(optional).
Just check coupons out (with price alert and history). Best price?
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.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. As you can see I didn’t find any active coupon for this product right now…
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BG00c906, ADMITAD2212, 2022ACTIESNL, Terence, BGLED2203, 8Couponsde, MVC8SPRING, 8BGwbg2204, BG289c28, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BGf94f14, BGLED2206, BG8ReviTrage, Cuponation9, BG0a14b6, 9OFFSUMMER, BGLED07, BGccec78, BG589b2e
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Do you need price history chart (for all/most countries) for 25cm LED Dimmable Touch Table Lamp Circular? There we go. The lowest price was: $11.21.
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)).