Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 3 another warehouse/versions!
1. China – Astrolux K1 XP-G3+UV+Red Flashlight Silver (-3 USD)
2. China – Astrolux K1 XP-G3+UV+Red Flashlight Blue (-3 USD)
3. China – Astrolux K1 XP-G3+UV+Red Flashlight Black (-3 USD)
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (20.78 USD): FIN4869
Coupon (20.78 USD): BGtorch2
(CouponsFromChina.com tip: you should apply the coupon in your cart 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): NWTO10R, 78da70, cmb1, CMBB, FLSTNE, BGAK1, M4BG, BGBFCR02, BGBFCR41, BGBFCR40, ECFKL, FMBG, AXMAS, BGAB20, BGASTROLUX, BGTORCH, BG1107YB, BG1107YR, BGFLS15, BGAST25, BGAFF10OFF, BGCuponation10, 4BLF, BG10OFFAFF, BGwhielabel, BG10OFFAFF1, BANGGOODSD, 6GSGIT, BGTorch4, 00c906, BGXMAS58, BGtorch3, BGAlerabat15, BGtorch7, BGAlerabatI
(these codes were not working in latest coupon update, but you can check them out anyway)
Other warehouses/versions
This item is available in 3 another warehouse/versions!
1. China – Astrolux K1 XP-G3+UV+Red Flashlight Silver (-3 USD)
2. China – Astrolux K1 XP-G3+UV+Red Flashlight Blue (-3 USD)
3. China – Astrolux K1 XP-G3+UV+Red Flashlight Black (-3 USD)
Price history and price alert
Check out price history chart (for all/most countries) for Astrolux K1 XP-G3+UV+Red Flashlight Colorful.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).