It's a very bright led flashlight and depending on the battery depends on the brightness.

I purchased the package with everything you need. Good quality flashlight and well worth the price. Three different light settings (low,medium,high) and beam setting also. All three lens (clear,red,green) are made of glass and very easy to change. The green lens is great for night time pest control.

As an old nighthawk instructor pilot, I love this flashlight with its red lens.
I hate using more light than I need in the dark. The red lens is usually more sufficient to keep me safe and get what I need to do done.
It takes 30 to 45 minutes to fully night adapt and bright white lights destroy the substance rhodopsin that allows us to see in the dark. The rhodopsin will build back up given the necessary time.
If maintaining night vision is important to you, this light is a good choice. I keep mine in a flashlight holster clipped to my pocket so it's always there when I need it.
Another similar flashlight with only the clear lens had a lanyard attached to the end. This flashlight doesn't have a hole for a lanyard to be attached. But with the flashlight holster, that's not as important.
I love my red lens flashlight!