Xiaomi MiJIA MJYD01YL Night Light (Banggood, Aliexpress: Luminance: 0.7 lm or 3.8 lm and 12 months or 6 months of working time, Material: ABS, Optional Color: Warm White, Battery Type: 3xAA batteries (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
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 Hong Kong. I found coupon for you. Check this out.
Link: Banggood product page
1. ($15.75): BGAFF10OFF
this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
Old coupons (from the oldest to the newest): MJNL19, MJNL22, mijia222, mijia333, mijia334, mijia224, mijia233, MNL122, alibuy75284, 502C6B, 19BGMILight1, mijia888, mijia668, TTxBG10, mijia665, MayDay10, BGmijia68, BGNIGHTLIGHT01, BGMIJIA33, 2019SPEDM, BGNIGHTLIGHT22, bgssaff9, AFfbG10, BGMI388, BGMI553, BGaDmITAd, BGMI588, aff7off, BGMJYD01, BGBFAFF2019, BGCITYADS2019, BGMJYDYL01, BGMINL33, BGMIJIA255, 2020CNY, BGVDay10%off, BGLIGHT2020, BGMIJIA988, BGYLRA, bGhOnEy10, BGMIJIA655, BGYEBWCN, BgoFErTaSchInA10, BGELIG0920, BgcLuBofErtA10
(I don’t think these’re gonna work, but you can try ’em out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Xiaomi MiJIA MJYD01YL Night Light [EU/CZ] ($-3)
Price history and price alert
Here is price history (for all/most countries) for Xiaomi MiJIA MJYD01YL Night Light. The lowest price was: $5.99.
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)).