How to buy high-power LED flashlights (LED High Power Flashlights).
1, look at the number of heads, the number of heads to moderate. Home generally do not exceed 12 heads, the use of batteries in 2 to 3 sections for good, and then a little big wave, for other special needs can be determined according to their needs. Of course, high-power Hight Power LED flashlights generally can not reach the number of 12.
2, look at the welding, welding should be firm. Each dipole is connected to the circuit board through welding, if there is a false welding contact is not good, it may cause the beads do not light or affect the overall use.
3, look at the battery, there are ordinary batteries and lithium two, although lithium for rechargeable batteries, but low life, about 2 years, the life of the LED about 10 years, according to the actual situation to choose
4, look at the brightness, a good LED flashlight brightness, slow decay rate.
5, look at the bulb, the bulb is off, the naked eye is difficult to distinguish between its good and bad, you can look at the consistency of the bulb in the case of lighting.
6, look at the waterproof, a good LED flashlight with waterproof function, good shock resistance, that is, fall resistance. As it belongs to electronic products, the flashlight has a circuit board in the front, once the water is prone to short-circuiting, causing damage.
7, look at the aperture, good LED flashlight aperture for a uniform circle, poor LED flashlight (LED Flashlights) spot is divided into yellow and blue uneven distribution. Beads concentrating surface as much as possible to focus a little. This flashlight unlike ordinary flashlights can adjust the focus, when buying and selling should be careful not to have astigmatism.
8, look at the appearance, you can choose aluminum alloy shell, beautiful and generous.