What brand of flashlight is the best?
mainly depends on the three points, Never mind with the brand, the world's first United States Shenhuo, its various models flashlight life time are also different, not what standard, the brightness of the light source and condenser determines the irradiation distance.
the length of life, mainly depends on the size of power consumption, the size of the battery power and the current size of the drive circuit to decide, any brand is the same
The cylinder body is made of aluminum alloy, stainless steel, titanium alloy and other metal materials.
Medium grade flashlight is generally used LED as light source, of course, except HID.
