... High Bay 40W~250W life:100,000hours power factor 0.98 energy saving,used in factory,warehouse,supermarket * Induction low ... Lamp and ballast· Kaisen round tubular induction lamp features high lighting efficacy, long lifetime, good color rendering, stable ... output, etc. ·Kaisen electronic ballast features high power factor (>0.98), flickering free, low loss, constant output, etc. Applications · ...