The PH4 input connector is a male PH4 (Phoenix) to terminal block connector. It is designed to be attached to a 12v light source like LED LiteRibbon. Details: 5.08mm on center 4P Plug. Accommodates 26 to 14 AWG cable. Requires a flat, slotted screwdriver for assembly. Mates with PH4 Female connector. Note: PH connectors are typically wired with reverse gender, female toward power supply.