It honestly depends on the type of flash light.
The answer is governed by the size of the flashlight. Count the amount of batteries that go into the flashlight and then multiply by 1.5 and this will give you the voltage of the flashlight. For NiCd and NiMH rechargeable batteries multiply by 1.3 volts.
Zero volts.
13.5-16 volts DC
none!
I do not know working volts of other brands flashlights. Imalent flashlights are wotked from 2.8v to 9v.
This will still only produce 12 volts. It will produce 1200 watts. watts is the result of Volts times Amps.
1.00 volt
A good AA battery has about 1.5 volts across it.
2 volts
Usually, a flashlight will use either 3 or 6 volts DC, depending on how many batteries it takes.. The fact that it's a battery defines that it will be Direct Current (DC). Each battery is 1.5 nominal voltage, so: If a flashlight holds 2 batteries, it is (1.5 volts) x 2 = 3.0 volts. If a flashlight holds 4 batteries, then it is (1.5 v) (4) = 6 v. Now, I'm not sure on a 4-battery flashlight, if they are circuited separately somehow (I imagine they are, cause I've never had to decide between 3 or 6 volts when buying replacement lamps).
It can produce up to 600 volts. It is not really an eel but a part of the group called knifefish. It is considered an apex predator.
enough to kill a person