Brightness (Lumens): A P50 flashlight should have a high lumen output to provide bright and efficient illumination. Aim for at least 1000 lumens or more for a powerful beam. 6800 Mah Battery full waterprooof

1. Light Modes: Include multiple lighting modes such as high, medium, low, strobe, for versatility in different situations.
2. Battery Type: Opt for rechargeable lithium-ion batteries 6800MAH
3. Battery Life: Ensure a reasonable battery life on the highest brightness setting, and longer life on lower settings. A runtime of 2 hours on high and 8 hours on low is desirable.
4. Beam Distance: Specify a beam distance of at least 200 meters for effective long-range illumination.
5. Water Resistance: Make it at least IPX6 or IPX7 rated to ensure the flashlight can withstand rain and splashes.
6. Impact Resistance: Ensure it can withstand drops from a reasonable height (e.g., 2 meters) without significant damage.
7. Material: Consider an aluminum or stainless steel body for durability.
8. Zoom/Focus Feature: Some P50 flashlights come with a zoomable or focusable beam, allowing users to adjust the beam’s width and distance.