Luminous angle: 30 degrees, Luminous flux: 400lm, Opening size: 70 – 80mm, Brightness range: 5 – 100 percent, Rotation angle: -30 – 30 degrees, Rated input: 220V 50Hz, Color temperature range: 2700K – 6500K, Material: ABS, Product model: YLSD04YL, Power: 5W.
Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
Aliexpress
I could not find it on Aliexpress. 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. We have found one coupon for this product!
Link: Banggood product page
1. ($25.95): BGYEE2021
apply code in your basket (cart) 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): 502C6B, TTxBG10, aff7off, AFfbG10, BGaDmITAd, BGYLSD04YL, BGYEE11COU, 0e7f33, BGLIGHT2020, FBCOUPON1, BGCuponation10, BGYEEL10
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Price history (for all/most countries) for Xiaomi Yeelight YLSD04YL Spotlight is here. The lowest price was: $13.51.
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)).