2 x 110 Volt 1.1 kW / 1100 Watt 348mm R7 Heater Bulb 230V. Can be used to replace Ruby or Gold 1.1 kW 348mm R7 heater bulbs. R7 / R7S push fit fitting. Output 1.1 kilowatt / 1100 Watt per bulb. 110 Volt, not for use with standard 230 Volt supplies.