Just check coupons out (with price alert and history). What is the best price?
Material ABS, Rating 5 W, Size 12x 21.5 cm, Weight 4500g, Color White, 110-220V, Rated Frequency 50HZ, Rated Voltage 220V
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. As you can see I didn’t find any active coupon for this product right now…
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGCE052, TTxBG10, 2019SPEDM, bgssaff9, BGAPPLIANCE, AFfbG10, BGKU03, 502C6B, BGBFAFF2019, BGCITYADS2019, BGBGHFRI15, BGVDay10%off, BGHOMEG12, BGiuwcsd, BGMPB2020, BGAFF10OFF, BGMWDJP, bGhOnEy10, BGSSWZLJP, BGSWWLJP, BGDCMYJP, BGDGNBJP, BGSS10%SW, bgshOOp10, BGHome15%, BGHOMEA15%, BGTT10, BGAFF7OFF, BGXPDEDSF96, BGCuponation10, 13f142, BG10OFFAFF, BGwhielabel, BG10OFFAFF1, BANGGOODSD, 00c906, BG00c906, BGAlerabat1, Terence, Tabby20, 2203ActiesNL, BG1efeb0, MVC8SPRING
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Price history (for all/most countries) for Loskii BT-KU03 LED Mosquito Killer is here.
Price records source(s): 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)).