Battery included No, LED 3*UV 365nm LED, Driver 2 modes 10%-100% max current output 6000mA / Temperature protection management inside, Required battery quantity 1pcs, Brand CONVOY, Low voltage warning Yes, Material Aluminum Alloy, Weight 124g, Tailstand Yes, Diameter(Head/Body) 34.6 / 27.4 mm, Required battery type 21700 or 18650 lithium (protected or unprotected) (battery tube inner diameter 22mm), Reverse polarity protection Yes, Reflector smooth, Lens type ar-coated glass, Length 134 mm, Mode memory Yes.
Basically copy coupon, view price history or create e-mail price alert. What is the best price?
Aliexpress
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Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. There are no active coupons for this product, but the price is pretty low isn’t it?
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!
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGHONEY2110, BGCONV, FIN67619, F46461, BGflashlight, BG10OFFAFF1, BANGGOODSD, BGTorch4, 00c906, BGtorch2, BGtorch3
(probably won’t work, but you can try them out)
Price history and price alert
Check out price history chart (for all/most countries) for Convoy S12 365nm 3x UV Flashlight. The lowest price was: $38.89.
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)).