Here’s how much brightness you can realistically expect from your flashlight
There’s a lot of false information regarding lumen and brightness ratings out there. Even big brands are doing it and claiming a higher lumen rating than actually possible.
The amount of light which an LED light produces is determined by its wattage capacity. On average, an LED will produce 90 lumens of light per watt. To get a realistic estimation of the brightness of the LED, look for the "watts" of the LED light which you're assessing. If it doesn't list the type of bulb being used, assume 90 lumens per watt and multiply by the number of watts of the LED for real maximum brightness.
The NoCry Spotlight uses an 18 Watt CREE XHP-50.2 LED which has an efficiency of 165 lumens per watt; equalling a maximum output of 2,654 lumens. As 1000 lumens is sufficient to illuminate darkness over 300 yards, we have programmed our LED to shine at 1000 lumens for the maximum setting, giving 6 hours of run time at this brightness, maximizing the usability of our product.