Rebaydo 4pcs Scotch Lock Quick Connector uses an I.D.C. insulation displacement connector design to easily connect and crimp two 18 AWG wires using a pair of pliers. Designed to provide a reliable IDC connection that lasts for years. Dimensions are 1.2in x 0.73in with an electrical rating of 3V-24V and 50/60Hz operation. Operating temperature range is Celsius -30 to +170 with environmental and work environment temperature range of Celsius -20 to +70. Operating humidity is 30%-65% with IP5 protection class and low ventilation. CE and RoHS listed.