Series (Aluminum) Aluminum vacuum plated dome with gearbox and 20″ glass lens (T shape installation bracket) 80W/100W/120W/150W/200W Protection Class: IP43 Ballast Casing: Die cast aluminum ballast casing with powder coated finish for corrosion resistance. Maintenance free system eliminates expensive lamp replacement cost where access is difficult or costly. Applications: warehouses, supermarkets, retail showrooms, exhibition halls, factories, workshops… Lamp Features: Maintenance free system eliminates expensive lamp replacement cost where access is difficult or costly. Flicker free – instant on and re-strike Electronic ballast features high power factor / 0.95 power factor Voltage: 120V – 277V