One of the perks for writing for Nerdbot is that I get some really cool stuff to review. I recently was able to get my hands on the InfinityX1 4000 lumen flashlight and knowing I couldn’t do the thing justice, let my stepdad take a crack at it. He’s one of those machine working, loves camping, fishing, making things with his hands type of guys. When we got the box he was really excited. Here’s what he had to say:
Pros
The InfinityX1 4000 flashlight, is a great product. The flashlight is very well made, very well machined aluminum, anodized ends (with lanyard hole), waterproof, o ring sealed with 3 light settings and is super bright. Like irreparable retinal harm bright on the high setting.
It is rechargeable, with an included USB cord, it doubles as a power bank to charge your devices via USB (cord not included) and is the first I have seen that comes with an alternate power option. This flashlight can also be powered by standard AA batteries (6 AA batteries arranged in its own included housing) And believe it or not, batteries were INCLUDED. The light is powered by three batteries and the other three are included in the housing for easily changing them out if the batteries should run out.
This product is made in the USA, in San Diego Ca. This company cares about the environment which you can tell by the products literature in the manual. The manual is also bio-degradable and will dissolve in water. Because you might need the manual later, there is a QR code to get a digital copy before you test that. And the remaining packaging is made from recycled material. It also gives the customer service info in the manual, showing they are willing to stand behind its product. Something that is becoming increasingly scarce in our disposable society.
The flashlight runs you $79.00 and is a great tool that you can keep in your truck. Dimensions: 32.3×5.3×3.8cm

Battery Stats: 2600 mAh rechargeable battery, or 9 AA batteries
High beam: 4000 lumens, 180m beam distance, 2 hour run time
Mid beam: 2000 lumens, 130m beam distance, 2.5 hour run time
Low beam: 800 lumens, 70m beam distance, 3 hour run time
Cons
This flashlight is large and heavy, Like classic D-cell Mag-light size and weight. If only those old Mag-lights were this bright.
It is heavy when using the included rechargeable power cell, which is approx. ¼ of the weight of the 6 AA battery alternate source. This light would be perfect to keep in your truck, so you can keep the alternate 6 AA battery pack in the glove box. You would not enjoy hauling the battery pack around in your bug out bag.
The run time in the rechargeable mode is 2.5h on high (4000 lumens) 4h on med (2500 lumens) and 6.5h (100 lumens) according to the companies included manual. I am unsure about the last 100 lumen figure as the power drop off is so steep compared to the reported runtime. I am sure results may vary. You can use rechargeable batteries with this unit but you cannot recharge those batteries when in the included housing. Housing is just to keep the battery configuration aligned to fit in the light.

As for using this as a power bank there is no indication of how much power (mAh) is available when using this so use caution when plugging in your new $1000 phone. Check their website for more information on this.
Rating: 4.5 out of 5
Author Bio: Mike Buehring has been working in engineering for over 30 years. His love of camping and anything useful when it comes to tools and construction makes him the perfect person to review this.