Features： 1、Durable Material: The power outlet box is made of premium material, high temperature resistant, wear resistant and durable, having a long service time. 2、Good Electrical Conductivity: The RV power socket has built in pure copper components, good electrical conductivity, easy to plug and unplug. 3、Easy to Install: The under grille trim has a simple open hole insert installation, convenient and time saving, don't need too much tools or complicated steps. 4、Release Rod: The electrical outlet box can lock the wire to prevent accidental removal, and the release rod can easily remove the cable. 5、Perfect Protection: The external protection level of the electrical power box is IP44, and the back protection level is IP30, ensuring the safe use and operation, suitable for RV, waggon trailer. Specification： Item Type: RV Power Inlet Output Voltage: 220V-250V Inner Item: External Power Box, Charging Plug Hole Size: Approx. 108 x 94mm/4.3 x 3.7in Fitment: RV, Waggon, Trailer Installation Method: Holes Insert Installation Use Instruction: Install and fix, and then connect the cable to start working. Package List： 1 x RV Power Inlet 1 x Three Core Interface 1 x Accessory 1 x Socket  1 x Accessory Bag(10Pcs)