I replaced an open source Juice Box EVSE (commonly called a "charger"), which was not UL approved, with the Canadian-made GrizzlE after seeing an article on it on the "Inside EV's" Blog. Couldn't be happier with it after four months of service. Real heavy duty quality product with a lot of options for plug type and cord length. Great price and no sales tax as it is Canadian-made and shipped from Canada. One week from order to delivery for me. Another plus is that I think many of the other EVSE's are made in China.