$15.99 – High Voltage Mosquito Lamp 3000V (Banggood, Aliexpress: Powerful High Voltage Mosquito Lamp 3000V Indoor and Outdoor Use with Insect Attractant Noiseless Operation Safety Plastic Casing USB Powered Versatile Setup Options in Black or White – Type B (the best price with coupon)).
According to my DB the lowest price is $15.99 for High Voltage Mosquito Lamp 3000V (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
Latest coupon code price check (UTC time):
Banggood ($15.99)
Banggood warehouse is located in China. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood. Isn’t it too expensive? From what I can see this price is higher than average price ($15.49).
Link: Banggood product page
Price: $15.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for High Voltage Mosquito Lamp 3000V. The lowest price was: $14.99.
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)).