I have a Ford Pinto with a 231 Buick turbocharged V6 for power. I bought a Derale single electric fan 2 speed with shroud from you. I need to buy a high amperage fan controller for it. I've read some bad reviews on the Derale controllers. Any suggestion on what to buy? I really need a good dependable fan controller. Prefer one that won't drown if it gets wet if possible as it will more than likely be installed under the hood. It has to be able to handle 30 amps.