1. see where you want to use it, such as night riding, night fishing, outdoor camping, cave exploration, patrolling, etc.
2. to see the battery, there are two kinds of ordinary batteries and lithium batteries, although lithium is a rechargeable battery, but the life is low, about 2 years, the life of LED is about 10 years, can be selected according to the actual situation.
3. when you look at the bulb and the bulb goes out, the naked eye can hardly tell whether it is good or bad. You can see the consistency of the bulb in the case of light.
4. look at the aperture, good LED flashlight aperture is a uniform circle, and the difference LED flashlight spot is divided into yellow, blue, and uneven distribution.
5. look at brightness. Good LED flashlight has high brightness and slow attenuation.
6. see waterproof, good LED flashlight has waterproof function, seismic performance is good, that is resistance to fall.
7. look at the appearance, this is more than I will see, I do not say much. I chose the aluminum alloy shell, beautiful and generous.
8. selection brand, brand is the quality of another definition standard, no good quality can not become a well-known brand, so when choosing a flashlight, you need to know a brand of branded flashlight. Depending on the ease of hand, you can choose different brands of flashlight.