... : 50 ~ 60Hz Applicable to HP Omnibook Series XE, XE2, XE3, 500, 900, 4100, 4150, 6000, 7100, 7150, 2100, 3000 and 3100 ... series. HP Pavilion Series N3000, N3100, N3150, N3250, N3270, N3290 ... N5300, N5340, N5380, N5350 and N5390/5 series Compaq Presario Series 1200, 1600, 1700, 1800 Series Operating Environment In Use: 0°C ~ +40 ...