Suggested Room Size: 50 – 60㎡, Voltage (V): 110V – 240V, Yeelight IP50, APP name: Mijia APP, 300-3000 lm, 2700 – 6500K.
Check coupons or create price alert down below. 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. I found coupon for you. Check this out.
Link: Banggood product page
1. ($225.79): BGYEELIGHT21
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): bgssaff9, AFfbG10, BGaDmITAd, aff7off, bgchinafest, BGYEE11COU, 7bcdf9, BG9NY, BGVDay10%off, BGLIGHT2020, BGAFF10OFF, bGhOnEy10, 2da767, BGdragonBoat, e4333f, bgshOOp10, BGYEE20COUPON, BgoFErTaSchInA10, BgcLuBofErtA10, BGCZ6932, BGYEE2021, BGYEEL10, BG10OFFAFF, BGwhielabel, BGLIG12, BG10OFFAFF1
(there’s a little possibility that old coupon will work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Xiaomi Yeelight Smart Square LED Ceiling Light [EU] ($-3)
Price history and price alert
Check out price history chart (for all/most countries) for Xiaomi Yeelight Smart Square LED Ceiling Light. The lowest price was: $92.99.
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)).