You can choose high power LED flashlight from the following aspects:
1) See LED flashlight bulb number, the number should be moderate. Home General should not exceed 12 head, use the battery in 2 to 3 as well, and a little bigger waves. Of course, high power LED flashlight generally can not reach the number of 12.
2) See welding, welding to firmly. Each diode is connected to the circuit board by soldering, if there are soldered contacts, they can cause electrical Pearl off or influence the overall use.
3) See battery, the ordinary battery and the lithium electricity, although the lithium electricity is the rechargeable battery, lower life, approximately 2 years. The LED life is approximately 10 years, according to the actual situation to choose battery.
4) See brightness, good LED flashlight has high-brightness, slow attenuation.
5) See bulbs, when the light bulbs is off, it is difficult to distinguish good or bad, you can look at the consistency of the bulbs in the work.
6) See aperture, good LED flashlight aperture is an even round, bad LED flashlight’ spot is divided into two uneven distribution of yellow and blue color. Electric condenser surface focuses on one point. This flashlight is not like ordinary flashlight which can adjust the focal length, consumers should be careful to choose them without astigmatism phenomenon.
7) See the appearance, you can choose aluminum shell.
Source:
http://www.yichen-flashlight.com/blog/
