Xiaomi Wifi Smart Nursing Light (Banggood, Aliexpress: Power factor: 0.5, stepless dimming by APP, Scope of application: indoor, Product model: CMTD28A, Resolution: 1920×1080, Product name: Xiaobai Smart Nursing Light, Lens angle: 150°, Wireless connection: WiFi IEEE 802.11 b/g/n 2.4GHz, Rated current: 0.6A Max, Wide product net weight: about 2030g, Lamp body size: 513mmx 150mmx 463_5mm, CMIITID: 2020DP7000, Rated volt: 110V-240V ~, Correlated color temperature: 4000K, Light source: LED, Video encoding: H.265, Power input: 12V = 1.5A, Working temperature: -1℃ ~40℃, Aperture: F2.4, Power frequency: 50/60HZ, Working humidity; 0%~85%RH, Dimming: 5 steps of dimming by button (the best price with coupon)).
Basically copy coupon, view price history or create e-mail price alert. What is 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 code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($174.26): tRaDetRaCKeR
2. ($176.15): 2203ActiesNL
coupon code has to be applied in shop’s 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): BgcLuBofErtA10, BG15SH12, BGSTHO15, BGHONEY2110, BGSHOM15, 13f142, BGSHE15, 6GSGIT, BG4a7a54, ADMITAD2212, BGSmart6, MVC8SPRING, 8BGwbg2204
(these coupons are old, so probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for Xiaomi Wifi Smart Nursing Light. The lowest price was: $127.49.
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)).