Okay this is funny stuff, but listen, I can get the Cast solid bronze bullet for 59 bucks a pop, with 25' of wire. That's a low price for a corrosion-resistant fixture along the salt water. My question originally has to do with reliable gutter-mounting fixtures for architectural lighting. Cost-effective is good, as long as she'll hold up in air close to the sea. I guess the powder-coat should be fine, as long as I lube the screws and contact points. From what you guys are teaching me, quality installation is the key. I'll push my customers toward brass, copper, and bronze, and sell it as an insurance policy. If they are on salt water I won't even give them an option.