Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – 1200V 20W UV Mosquito Killer Lamp (-3 USD)
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (63.91 USD): BG0a78ed
Coupon (67.91 USD): BG4ee866
Coupon (70.30 USD): BG72c41b
(CouponsFromChina.com tip: paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGHECARE1, BG65704b, BG589b2e
(probably won’t work, but you can try them out)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – 1200V 20W UV Mosquito Killer Lamp (-3 USD)
Price history and price alert
Check out price history chart (for all/most countries) for 1200V 40W UV Mosquito Killer Lamp.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).