Go down and check coupons out. Remember to check price history if it is available. You probably want to know what is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Drop-proof height 1m, Brand NEXTOOL, Battery 13500mAh 3.6V 48.6Wh lithium-ion battery, Product weight 497g, Main material Aluminium alloy / PA66+30% GF, Waterproof rating IPX5, Colour temperature range 2700k-6500k, Product specification 124X119X39.7mm
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($73.59): BG8OFFCOUPON
2. ($75.19): BG00c906
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG7aedc5, BGfea5c9, BG99ec4b, BGty019, BGHUI45494, BGab8cbf, BGAlerabatod, BG309d3f, BGzb433cn, 00c906, BGf2d590, BGe46870, BG87fe73, Tabby20, BG7280ff, BGa92ead, BGALIBUY494, BGd85bdd, BGeb3f38, 8Couponsde, BG36e006, BG2bb7a1, BGoutravel7, BG5d2ea4, BG369949, BG56c72d, BGb32788, BG9687db, BG073996, BGcdfc21, BGa047f8, BGc363fd, TTBLACK5
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – NEXTOOL 1800lm 13500mAh Flashlight Lamp [EU] ($-3)
Price history and price alert
Do you need price history chart (for all/most countries) for NEXTOOL 1800lm 13500mAh Flashlight Lamp? There we go.
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)).