how to signal SOS with a flashlight?
SOS is commonly understood as "Save Our Ship".
S.O.S. is the international Morse code rescue signal, universal remote expression,
Method 1: sound, three short three long three short (. . . _ _ _ . . . ) Morse code.
Method 2: lighting, such as flashlight.The flashlight flashes fast three times, slowly three times, and then quickly three times.
The flashing frequency of the flashlight is standard, according to the following way, the fast flash time does not exceed one second, and the slow flash time exceeds one second.
It's a life-saving signal in case of an emergency. As technology advances and security awareness increases, many flashlights have the function of SOS signal. Ultrafire flashlight attaches great importance to the function of SOS signal, based on the principle of customer safety. Ultrafire hopes to light up your darkness when you are in danger and only wants you to be in the light forever.