[guilty]

I dont know about Ontario's "extreme cold" days, but hella products should outlast any weather condition thrown at them.. You should contact Hella, see if they have a customer service line or something and see what they say.

If you cant get anything from them directly, maybe talk to Voytek from bosseuroparts.com since he's a Hella retailer so he's had experience dealing with them (I think Voytek is still in Europe, but you should be able to email him).