Download method: Download the QR code of the scanned manual, Voltage: 220V, Working temperature: – 10 – / + 40Deg.C, Power: 0.5W, APP name: i-lamp.
Just check coupons out (with price alert and history). You probably want to know what is the 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 price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($17.27): BGLED07
2. ($17.85): Cuponation9
3. ($18.05): TTSUMMER8
4. ($18.44): BG00c906
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): TTxBG10, AFfbG10, BGYLYD03YL, affbg10, BGaDmITAd, 502C6B, BGYEE11COU, 13f142, BG9NY, BGLIGHT2020, bGhOnEy10, bgshOOp10, BGLIGHT0920, BgoFErTaSchInA10, BGELIG0920, BGYEE20COUPON, BgcLuBofErtA10, BGYEE2021, BGYEEL10, BG10OFFAFF, BGwhielabel, BGLIG12, BG10OFFAFF1, BGYEELIGHT21, 00c906, Terence, BGLED2203, MVC8SPRING, 8BGwbg2204, 2203ActiesNL, tRaDetRaCKeR, pROMo8cuPoN, BGf94f14, BGLED2206
(there’s a little possibility that old coupon will work)
Price history and price alert
Do you need price history chart (for all/most countries) for Xiaomi Yeelight YLYD03YL Induction Night Light? There we go. The lowest price was: $6.99.
Price records source(s): Gearbest, 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)).