Light cup: smooth cup, Waterproof rating: IPX8, Color temperature: 6500K, Lamp beads: SST40, Switch type and position: reverse switch, Material: aluminum alloy, tail press, Lumens: 2000lm, Battery life: about 1 hour (depending on battery capacity), Power supply: 1x 18650 battery (without battery), Power: 15W, Range: 300 – 500 meters, Voltage: input voltage 3 – 4.2V, Can remember the gear position.
Price history, coupons and price alert are available on this page. You probably want to know what is the best price?
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.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in Europe 
. This is new product in my database, so I don’t know if this price is good. There is one coupon right now! Check this out.
Link: Banggood product page
1. ($22.22): BG10OFFAFF1
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): BGC840, linepayflt, EYBG, BGSM30%, BGF1111, fInbG2020, BGff2020, BGSPR, BG14TH16, BG1128, BG10OFFAFF
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Not enough data to show price history chart… $21.69 is the only recorded price. It was not cheaper than that since we have saved it in DB.
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)).