IZTOSS Blue led 3 gang DC12V/24V blue 5 pin switch panel with led power socket 4.2A dual USB voltmeter Decal Sticker Labels and wiring kits for Marine Boat Car Rv Vehicles Truck The Aluminium panel Dimension:3.94"x4.33"x3.54"(Length*Width*depth), Portiforium Dimension: 8.2cm x 6.2cm ( 3.22in x 2.44in) The 3 gang DC12V on-off switch,DC12V voltmeter and 5V 3.1A dual USB approved Rhos/CE/UL Certify, Totally made of Environment Friendly material. Suitable for DC 12V Systems, switch Panel is pre-wired. With screws,3 terminal connectors(for switch wiring with device) , 6 pcs 16-14AWG Insulated Heat Shrink butt Terminal for installing well and Decal Sticker Labels Easy to install: only put the item into the switch hole, fix it with screws and then you can begin to use it.