PIONEMAN K45-C SST70 XHP70.2 Flashlight (Banggood, Aliexpress: Lens type Double-sided purple film coated lens, Switch position Center side press, Product net weight 166.8g, Shell color Black / silver, Charging current 2A max, Material Aluminum alloy, Color temperature 6500K, Use battery type 1×21700 battery (not included), Brand PIONEMAN, LED SST70/XHP70.2, Oxidation description Silver for general oxygen / black for hard oxygen, Low voltage warning Yes, Flashlight length 145.8mm, Battery compartment diameter 27.5mm, Battery compartment inside diameter 21.5mm, Reverse polarity protection Yes, Head diameter 44.5mm, Tail reverse Yes, LED substrate 20mm*1.6mm, Reflector Glossy, Circuit compartment 22mm, Mode memory Yes, Model K45-C (the best price with coupon)).
Basically copy coupon, view price history or create e-mail price alert. Do you want to know what the best price is?
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. I am tired of searching coupons, but I found one for you…
Link: Banggood product page
1. ($26.67): FIN2066
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 and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG10OFFAFF1, BANGGOODSD, BGTorch4, 00c906, BGtorch2, BGtorch3, BGAlerabat15, BGtorch7, F31478
(there’s a little possibility that old coupon will work)
Price history and price alert
Price history (for all/most countries) for PIONEMAN K45-C SST70 XHP70.2 Flashlight is here. The lowest price was: $26.67.
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)).