First, the price is certainly a deciding factor on this relay. Many people seem to have had success with these, but unfortunately mine failed very quickly. Utilizing it in the dashboard for a switching control, the relay wasn't subjected to any weather (except perhaps the normal high temperatures encountered in a car sitting in a parking lot!). The relay failed after a few weeks of use.Other observations, the case is built cheaply and doesn't seal at all. If the relay is mounted by the tab, the wires alone will cause the clip-in bottom component to wiggle with more play than I would normally be comfortable with. I don't believe there is much resistance to dust give then flex between the case cap and the bottom component where the wires are connected.My 2 cents, you can probably find a better relay elsewhere. It worked great while it was working and never got warm to the touch.