40 Watt Model Power: 40 Watts (two lamps, 20 Watts each) Voltage: 220-240 Volts Frequency: 50/60 Hz Coverage Area: 60 square meters Product Size: 20 × 12 × 75 cm 30 Watt Model Power: 30 Watts (two lamps, 15 Watts each) Voltage: 220-240 Volts Frequency: 50/60 Hz Coverage Area: 50 square meters Product Size: 20 × 12 × 60 cm