... iron alloy housing with powder coated for corrosion-resistance, robust and durable.2.VE's induction lamp features high lighting efficacy, ... .3.VE's electronic ballast features high power factor(>0.95),flickering free operation with low wattage loss and constant output, ... .Advantage of our induction lamp:1.Ultra-long lifetime: 100,000 hrs, a five-year warranty, virtually maintenance free2.High lighting ...