How To Choose The Right Wire Connectors In a Cookie-Cutter Product:A product is only as good as the materials it’s made from.These solder seal wire connectors are composed of high-purity and thick solder rings,and the molten solder flows and adheres completely after heating wire for a rock-solid connection!Includes large wire connection applications. | Impeccable Build Quality:Weatherproof.The Waterproof solder wire connectors is made of high-quality hot melt adhesive material that is heated to melt the rich adhesives and wrap the solder wire connectors.Form a seal.Additional moisture resistance and strength are key to a durable and strong wire connection application in wet conditions! | Long Term Reliability:We can handle complex wiring connection environments.Why?The solder seal wire connectors heat-shrink tube made of EVA materials clearly allows the user to see the quality of the soldering penetration.Heat shrink tubing is abrasion resistant and protects the cable. | One And Only:Haisstronica's waterproof solder wire connectors are marked with wire gauges for easy identification.Just measure the wiring,and by checking the wire gauge markings on the polyolefin tubing,you can quickly select the appropriate connector. | Rest Easy:The 380pcs solder seal wire connectors includes Yellow 90pcs,Blue 120pcs,Red 130pcs,White 40pcs.Haisstronica waterproof wire connectors are compliant with ROHS,ISO 9001:2008,SGS,and CE standards.If for any reason you are not satisfied with your purchase, please contact us.We offer a 30-day money-back guarantee and a 12-month replacement warranty,giving customers a 100% satisfaction guarantee for a risk-free purchase!