$12.99 – Rated Power: 0.34W, Size: 80mm*62mm, Light Source: LED, Power Supply: 3pcs AA Batteries (Not Included), Light Color: Warm White, Delay Time: 15s, Sensor Angle: 120 Degree, Working Temperature: -10 ° C ~ 40 ° C, Model: MJYD02YL, Input Voltage: DC4.5V, Color Temperature: 2800K, Sensor Mode: Human Body Infrared Sensor + Light Sensor.
According to my DB the lowest price is $12.99 for Xiaomi Mijia MJYD02YL Night Light (in Banggood). You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
Latest price update (UTC time):
Banggood ($12.99)
Banggood warehouse is located in China. I can’t find any active coupons for this product in Banggood. I think you want to know if the price is good. Hmmm, price is higher than average (which is $7.99 right now), so better set price alert down below…
Link: Banggood product page
Price: $12.99
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGMJYD02YL, BGaDmITAd, BGplswiatlo1, BGMINL2, BGCITYADS2019, aff7off, BGMJ02YL, 13f142, 2020CNY, BGLIGHT2020, BGAFF10OFF, bGhOnEy10, BGYEBWCN, BGdragonBoat, BGXIAOMYD, BgoFErTaSchInA10, BGELIG0920, BgcLuBofErtA10, BGCuponation10, BG10OFFAFF, BGwhielabel, BGLIG12, BG10OFFAFF1, BGd0b05d, 00c906, BG00c906, ADMITAD2212, 2022ACTIESNL, Terence, BGLED2203, 8Couponsde, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, BGLED2206, Cuponation9, BGLED07, BGccec78, BGLEDNOV2022, BG6bfa61, BG8d55bf, BG031d34, BG955325
(I don’t think these’re gonna work, but you can try ’em out anyway)
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.
Price history and price alert
Check out price history chart (for all/most countries) for Xiaomi Mijia MJYD02YL Night Light. 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)).