Waterproof rate: IP66, Input voltage: AC180-240V, Lamp bead type: 2835SMD, Color temperature: 6000-6500K, Cable length: 30cm, CRI: >70, Wattage: 10/20/30/50/100W, Material: Aluminum+Glass.
Just check coupons out (with price alert and history). You probably want to know what is the 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 Europe 
. I don’t really know if this price is reasonable, coz there’s no price history in my DB. One coupon is available. Cool!
Link: Banggood product page
1. ($15.03): BG00c906
just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGJULY407, Cuponation9, 9OFFSUMMER, BG073996, BG589b2e
(you can check these old coupons out, but these probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – 100W LED Flood Light IP66 [EU] ($-3)
Price history and price alert
There is only one database record (it was for $12.79), so you can’t see price history chart.
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)).