Originally Posted by
Ziemas
I regularly (every commute) go over rough cobblestones and haven't had either of my Radbots shut off. I also tried shaking and whacking them against a table and they are solid.
Have you contacted PDW about your lights? They have top notch customer service. PM me if you want a direct email address of the customer service guy.
Yes, I did contact PDW. They sent me a new light to replace the first generation light but the second one still has problems and will shut off intermittently. The problem may have been corrected but it's something to be aware of when considering them. The Superflash never had a problem with shutting off. It does have problems with staying in one piece, however.