If you have the budget, around $600+ you can get a Nikon one
that can throw a blinding flash of bright white light upto 56
meters!
Or, for around 300+ you can get the same by Nikon that can throw
upto 36 meters. These are called Guide Numbers (GN).
Get one from Alan Photo at Sim Lim Square...
But let me remind you, either for self defence or not, it is NOT a
legal idea.
A blinding flash can cause the other party to lose control in a
panic.
Personally, to anyone who tries me on the road, this is what they
will get - unless they can close their eyes when fark with me!
