How to Choose High-power LED flashlight (for reference only): 7, see aperture, a good LED flashlight a round aperture for the uniform, poor LED flashlight spot color is divided into two uneven distribution of yellow-blue. Power bead surface condenser on one point as far as possible. This Unlike ordinary flashlight focus flashlight can be adjusted to purchase the phenomenon should be careful not to have astigmatism. 1, spectacle of a few, the first few to be moderate. Home of the general rule, not more than 12, the use of batteries in 2 to 3 is better, and then a little bit big waves can be used for other special needs, determined according to needs its own. Of course, the power Hight Power LED flashlight 12 generally can not achieve the number. 2, see welding, welding to prison. Each diode is connected to the circuit board by soldering, and if there are cold solder joint contact is not good, is likely to result in electrical beads does not shine, or affect the overall use. 3, watch batteries, there are two kinds of ordinary batteries and lithium, although the power of rechargeable lithium batteries, but the life expectancy is low, about 2 years, LED life span of about 10 years, can be chosen according to actual situation 4, see brightness, good brightness LED flashlight high and slow decay. 5, look at light bulbs, light bulbs out of the case, the naked eye it is difficult to distinguish between good and bad, you can look at the case of light bulbs consistency. 6, see waterproof, a good LED flashlight with waterproof function, seismic performance, the ruggedness. Because it belongs to electronic products, flashlight front there is a circuit board, once the water prone to short-circuit, causing damage. 7, see aperture, a good LED flashlight a round aperture for the uniform, poor LED flashlight spot color is divided into two uneven distribution of yellow-blue. Power bead surface condenser on one point as far as possible. This Unlike ordinary flashlight focus flashlight can be adjusted to purchase the phenomenon should be careful not to have astigmatism.
