Review on 🔌 Nilight 50044R 5 Pack - Waterproof, 40/30 AMP Heavy Duty, 12 AWG Tinned Copper Wires, 5-PIN SPDT Bosch Style, 12V Automotive Relay and Harness Set - Includes 2 Year Warranty by Edgar Clark

This review is for the waterproof 5-pack version. Corrosion was found on most of the pre-stripped wires and on some of the pigtail connectors. Some terminals had bad crimps and had to be re-crimped using a good quality ratchet crimp tool and appropriate jaws. The wires were NOT pre-tinned and the corroded ends of the wires had to be cut off before use. The relay and pigtail housing were very difficult to put together, dielectric grease helped and should be considered a must for anything exposed to moisture. After removing corrosion from the connectors with DEXoIT and treating all connections with dielectric grease, they have been retested and are working as expected. I wouldn't use pigtails for wiring unless you can reliably seal them from further corrosion. I hope after using good quality ferrules and applying a small amount of marine grade dielectric and heat shrink tubing they will last a long time.