DEL 120V Spa Eclipse Corona Discharge Ozonator 4 Pin The SpaEclipse is DEL Ozone's first Corona Discharge ozone generator for residential spas available through distribution. In addition to the advantages of Corona Discharge ozone technology, the SpaEclipse saves money because the Corona Discharge chip uses less energy (no lamp, ballast, or starter) than an ultraviolet generator and the chip costs less to replace. The SpaEclipse uses solid state electronics to eliminate voltage spikes that can upset spa-pack electronics or trip the G.F.C.I. Finally, water backup into the SpaEclipse will not harm the unit or trip the spa's G.F.C.I.