$17.90 – Convoy S21A SST40 Flashlight (Banggood, Aliexpress: Tailstand: Yes, LED: SST40 6500K white tint, Mode memory: yes, Reverse polarity protection: Yes, Color temperature: 6500K, Low voltage warning: Yes, Reflector: orange peel, Battery included: no, Range: 50 – 100 meters, Whether to charge: no, Number of lamp beads: 1, Lens type: Ar-coated glass lens, Whether to remember the gear: yes, Light effect color: white light, Body color: titanium gray, Is it waterproof: level 8, Voltage: input voltage 3 – 4.2V, Lumens: 2300LM (maximum), Required battery type: 21700 or 18650 lithium-ion battery (not included), Required battery quantity: 1pcs (the best price with coupon)).
When I was updating this page, then coupon price was $17.9 for Convoy S21A SST40 Flashlight (in Banggood). Get coupons, create price alert or check price history out! You probably want to know what is the best price?
Latest coupon code price check (UTC time):
Banggood ($17.90)
Banggood warehouse is located in China. But wait a sec… Is it a good price? It looks like it’s a good price (lower than average ($18.42)). You can get coupon down below.
Link: Banggood product page
Price without coupon: $18.79
1. ($17.90): BG28c015
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): BGS21A, BG7S21A, EYBG, BGTORCH, 502C6B, BGBFCR41, fInbG2020, BGff2020, BGCONVOYSS, BGCONV, BGflashlight, BG10OFFAFF1, BANGGOODSD, BGTorch4, 00c906, BGtorch2, BGtorch3, BG8Alerabat, BGLED07, F03081, BG5de8a6, FIN1443, BGOutlight10, BG29ddce, BG6be74d, BGBLF26, BG589b2e, BGd57765, BGHOBBY240, Fin0308
(these codes were not working in latest coupon update, but you can check them out anyway)
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Here is price history (for all/most countries) for Convoy S21A SST40 Flashlight. The lowest price was: $16.99.
Price records source(s): Gearbest, 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)).