... ballast -CE,EMC,LVD,ROHS,FCC approved -Rated or High tolerance voltage:110V-277V -Wattage:23W-400W Induction Lamp Electronic Ballast: ... of DC electronic ballast in 15W,23W,40W, make induction lamp widely used in emergency lighting, solar lighting areas etc ... the switch on and off frequent area.Specifications of TW induction Lamp electronic ballast: BallastTypeRatedVolt(V)Current(A)Basic FrequencyPower ...