Wirepal 50PCS Solder Seal Wire Connectors - Waterproof Heat Shrink Butt Connectors - Electrical Wire Terminals - Marine Insulated Butt Splices

Product detail 30 x Red Shrink Connectors : diameter 2.7 mm, long 40mm, for cable cross-section 0.5-1.0 mm2(A.W.G:22-18);  20 x Blue Shrink Connectors : diameter 4.5mm, long 40mm, for cable cross-section 1.5-2.5 mm2(A.W.G:16-14);  No Crimping Required – Much More Convenient Than The Old Way You have to use pliers and heat gun to finish the wire connect project when using the old style butt connectors, in this kinds of connector, you just use heat gun then you can finish your project. Besides, you can also use them in hard to reach or limited space environments easily. IP67 Waterproof Connectors Solder Seal Wire Connectors are IP67 waterproof. Adhesive lined colored rings on these butt connectors create a durable waterproof seal between the wire and the connector. This technology keeps all the moist out of your connection and prevents any corrosion even in the most humid environments. Specification Shrinkage Ratio: 2:1 Dual-walled design tubing: polyolefin tubing on the outside and hot melt adhesive inside Minimum temperature for solder to melt: 138°C Minimum shrink temperature: 80°C Operating temperature: -55? - 125? Dielectric strength: 1kv Protection class: IP67 Waterproof Package include 30 x Red Butt Connectors 20 x Blue Butt Connectors How to use 1. Choose the right size of connector for two wires. 2. Insert the two wires to the connector. 3. Heat the connector with a heat air gun.