Bradford White ElectriFLEX LD® (Light-Duty) 10 Gallon Commercial Electric Utility Water Heater. 5-Year Tank Warranty, 1.5 kW, 120 Volts, Single Phase. The Bradford White ElectriFLEX® Series offers Field Convertibility for kW, Voltage, and Phase. The "-284" indicates that this SKU comes with an Incoloy Element. The "-506" indicates that this SKU comes with an A420 Aluminum Anode Rod.