Spec - SS-3 (Orange)/ 30 PCS/ AWG 22-14 / Product Dimensions H: 42 ØD: 12 / Temperature Rating: -40° to 105°C / Voltage Rating: 600 Volts Distinction 1. (Efficiency): Shrink tubing shrinks to 4:1 ratio. Product numbers are printed on tubes for quick and easy size selection. A strong adhesive tubing prevents wires from being loose due to shaking or pulling. Copper to copper connections only. Distinction 2. (Safer): We produce a waterproof wire connector with an integrative twist-on wire connector and adhesive-lined shrink tubing. Shrinks tubing and leaked silicon cover wires, then it has extra waterproof effects. Distinction 3. (More Reliable): Our waterproof wire connector is RoHS Compliant. / We applied and complied RoHS testing to protect our customers safe and the earths environment. Do not recommend heating the connector part. It could melt the wire connector. Try to heat the tubing part evenly. Guarantee: Our outdoor waterproof electrical connectors provide a much more