Just got the smart superflash. Knocks spots off my other lights. I'd agree with what others have said about 'don't look into it'!
The place i got mine from stated in their advert:
"The Smart 1/2 Watt 3 LED rear cycle light is supplied with two AAA Batteries and includes bike mounts, clip mount and arm strap for multiple mounting options."
Found the bike mounts, clip mount, but no sign of an arm strap? Have they misrepresented it or does it normally come with an arm strap?