Home / Electrical / Regulators & Rectifiers / Regulator / Rectifier – 1 Phase Regulator / Rectifier – 1 Phase$77.00 Regulator / Rectifier - 1 Phase quantity Add to cart SKU: EL4300 Category: Regulators & Rectifiers Description Description Key West – Single Phase No load required. 13.8 VDC output. Needed when no battery in system. Optional when battery is used. Can be used with battery as a charging system. Blue aluminium case. Will run radios, GPS, Avionic etc.