You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
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):
Cree XP-G2 R5, 110 lm, 553 cd, 6500-7000K, Battery Quantity: 1x AAA battery (not included), Waterproof Standard: IPX-8 Standard Waterproof (Underwater 2m)
Price history and price alert
Check out price history chart (for all/most countries) for Lumintop Colored Worm 4.0 Blue Flashlight.
Price records source(s): Gearbest
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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)).