Lamp (LED) number from a dozen to twenty or thirty, and more to more than forty lamp. Most of the torch shell is made of aluminum alloy, flashlight switch some set in the tail, and some set in the side of the front part, the side of the front switch is more convenient to use. Due to the high-brightness LED's ignition voltage is about 3V, so this LED flashlight with three AAA batteries can be directly lit without the need to step-up, so the power supply efficiency is high, only a small energy consumption limit Flow resistance. It should be noted that, not the more the number of LED the better. Qiqi Wang automotive supplies experts advise, but also pay attention to see whether there is better quality lamp reflector, it can reflect the light from the LED scattering out, you can increase the brightness of the flashlight 20% to 30%. The main disadvantage of this multi-lamp torch is the condenser effect is not very good, obviously not as good as ordinary flashlight condenser, so long-range exposure to the object is not bright enough.